Formation of island chains occurs when convergent boundaries interact and is denoted as option A.
What is Convergent boundary?This refers to an area where two or more lithospheric plates collide in the earth.
When the y interact, island chains are formed which consists of sea with sparse islands around the area.
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Answer: A
Explanation: E2022
help me plss on all of them
2 Answer:
Which of the following is most likely to be an insulator?
a. copper
b. plastic
c. gold
d. silver
3 Answer:
Temperature is a measure of average
a. kinetic energy.
b. amount of calories.
c. amount of work.
d. heat of fusion.
4 Answer:
How would the average body temperature of a healthy human, which is
37 degrees C, be represented in Kelvins?
a. 0°K
b. 236°K
c. 310°K
d. 37°K
5 Answer:
Which of the following would require the greatest number of calories?
a. heating 1 g of water from 10°C to 80°C
b. heating 10 g of water from 10°C to 40°C
c. heating 100 g of water from 10°C to 20°C
d. heating 1000 g of water from 10°C to 12°C
6 Answer:
If a 10.0 g piece of metal required 100 cal to raise its temperature
by 20°C, what would you report as its specific heat?
a. 10 cal/g·°C
b. 200 cal/g·°C
c. 0.5 cal/g·°C
d. 2 cal/g·°C
7 Answer:
Which of the following does not happen during the phase change from
solid to liquid?
a. Heat is absorbed.
b. The temperature rises.
c. Melting occurs.
d. Molecules move faster.
8 Answer:
How much heat is needed to vaporize 100 g of water at 100 degrees C?
a. 54,000 cal
b. 100 cal
c. 80 cal
d. 800 cal
a) Plastic Is an insulator
b) Temperature is the Kinetic energy
c) The temperature in kelvin is 310°K
d) The greatest heat is heating 1000 g of water from 10°C to 12°C
e) The heat capacity is 0.5 cal/g·°C
f) The temperature rises.
g) The heat needed is 54,000 cal
What is an insulator?We know that an insulator has to do with the kind of substance that would not allow heat or current to pass through it. We know that insulators are the opposite of the conductors .
Temperature has to do measure of the average kinetic energy of the molecules of a body. We know that as the temperature increases, the kinetic energy of the molecules increases.
We know that;
H = mcdT
m = mass of the water
c = specific heat capacity of the water
dT = temperature change
100 = 10 * c * 20
c = 100/200
c = 0.5 cal/g·°C
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Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
peptides
fats
nucleotide
carbohydrates
H +
ions
DNA
RNA
The toxin could bind to any of the sites other than the catalytic site that are important for______ polymerase to work in transcription. Examples of these are ______ entry and exit channels, the _______ exit channel, the ________entry channel, and the protrusions shown within the polymerase that separate_________ strands and guide the exit of the___________ .
The toxin could bind to any of the sites other than the catalytic site that are important for RNA polymerase to work in transcription. Examples of these are DNA entry and exit channels, the RNA exit chanel, the nucleotide entry channel, and the protrusions show within the polymerase that separate DNA strands and guide the exit of the RNA.
All living things, including many viruses, include RNA polymerase, often known as DNA-directed RNA polymerase or RNAP. These RNAPs, which are found in bacteria, archaea, and even eukaryotes, all have identical protein core structures and workings.
In molecular biology, an enzyme called RNA Polymerase, often known as RNA Pol or RNAP, synthesises RNA from a DNA template. With the aid of the enzyme helicase, which breaks down damaged DNA strands, RNA polymerase copies the DNA sequence into an RNA sequence during the transcription process.
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Read the following paragraph from the introduction [paragraphs 1-3].
An enzyme is defined as a macromolecule that catalyzes a biochemical reaction. In this type of
chemical reaction, the starting molecules are called substrates. The enzyme interacts with a
substrate, converting it into a new product. Most enzymes are named by combining the name
of the substrate with the -ase suffix (e.g., protease, urease). Nearly all metabolic reactions
inside the body rely on enzymes in order to make the reactions proceed quickly enough to be
useful.
Which answer choice BEST supports the idea that enzymes play an important role in
biochemical functions?
A An enzyme is defined as a macromolecule that catalyzes a biochemical reaction.
B The enzyme interacts with a substrate, converting it into a new product.
C
D
Most enzymes are named by combining the name of the substrate with the -ase suffix
(e.g., protease, urease).
Nearly all metabolic reactions inside the body rely on enzymes in order to make the
reactions proceed quickly enough to be useful.
Proteins called enzymes aid in accelerating our bodies' chemical reactions, or metabolism. Some substances are created, while others are broken down. Enzymes are a part of all living things. Enzymes are created by our bodies naturally.
What exactly are enzymes and what varieties are there?Enzymes are categorised by the type of reaction they are used to catalyse into six functional classes, according to the International Union of Biochemists (I U B). Hydrolases, oxidoreductases, lyases, transferases, ligases, and isomerases are the six different categories of enzymes.
Enzymes and food enzymes: what are they?In order to accelerate and/or target particular chemical reactions, enzymes are proteins that enhance, or catalyze, biochemical reactions.
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which of the following is not a characteristic of the 5\'ʹ cap?
The 5\'ʹ cap is a tag for mRNA degradation.
What is mRNA degradation?In bacterial cells, mRNA degradation is a crucial mechanism for managing gene expression. A battery of cellular exonucleases and endonucleases, some of which are universal and others which are exclusively found in specific species, are employed in this process in an ordered manner. A monitoring pathway found in all organisms is nonsense-mediated mRNA degradation. By removing mRNA transcripts with premature stop codons, it primarily serves to prevent mistakes in gene expression. The poly(A) tail of the majority of mRNAs is destroyed by the CCR4-NOT or PARN in a deadenylation-dependent process. The DCP1-DCP2 decapping complex subsequently removes the mRNA's 5' cap. The XRN1 exoribonuclease then breaks down the mRNA in a 5' to 3' orientation after the cap has been removed.To learn more about mRNA degradation refer to:
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Why doesn't scientific evidence lead to absolute certainty?
Please choose the correct answer from the following choices, and then select the submit answer button.
It is impossible to determine what scientist's results are to be believed.
There is no guarantee that the evidence is reliable.
Natural phenomena can never be explained by science.
There are always new questions to ask and new ways to investigate questions.
Answer:
the last option
I wish you luck in your assignments.
I really need with with this biology questions.
A pedigree chart is a diagram that shows the generational genetic patterns of a family.
Explain pedigree?A pedigree chart is a diagram that shows the generational genetic patterns of a family. It illustrates a family's members' personalities and sickness.A pedigree chart shows the characteristics passed down through the generations in a family. The alleles it represents are both dominant and recessive.A non-Mendelian inheritance pattern called a blood group is regulated by many alleles.A pedigree chart shows the characteristics passed down through the generations in a family. The alleles it represents are both dominant and recessive.A pedigree chart is a diagram that shows the generational genetic patterns of a family. It illustrates a family's members' personalities and sickness.A pedigree chart is a diagram that shows the generational genetic patterns of a family. It illustrates a family's members' personalities and sickness.To learn more about pedigree refer to:
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Which site on the ribosome is NEVER occupied by a tRNA linked to a nascent polypeptide chain? O the A site O the E site O the P site
Answer:
The P site
Explanation:
The P site holds the tRNA with the growing polypeptide chain. The E site serves as a threshold. It holds the tRNA without its amino acid, which is then released by ribosome.
A study was conducted investigating the long-term prognosis of children who have suffered an acute episode of bacterial meningitis, an inflammation of the membranes enclosing the brain and spinal cord. Listed below are the times to the onset of seizure for 10 children who took part in the study. In months, the measurements are:
Based on the given data, mean is 0.352, range is 0.86, median is 0.31, interquartile range is 0.28, mode is 0.12 and 0.24, and standard deviation is 0.81.
What is a data set?A data set is a particular number of data given in any order.
The measurements for 13 children are: 0.10, 0.25, 0.50, 0.4, 0.12, 0.12, 0.24, 0.24, 0.31, 0.36, 0.42, 0.55, 0.96.
By rearranging the data set in ascending order we get:
(0.10, 0.12, 0.12, 0.24, 0.24, 0.25, 0.31, 0.36, 0.4, 0.42, 0.50, 0.55, 0.96.)
1. mean
= (0.10 + 0.25 + 0.50 + 0.4 + 0.12 + 0.12 + 0.24 + 0.24 + 0.31 + 0.36 + 0.42 + 0.55 + 0.96)/13
= 4.57/13
= 0.352
2. range
= (0.96 - 0.10)
= 0.86
3. median = 0.31
4. Here, median of the first half of the data set is
= Q₁
= (0.12 + 0.24)/2
= 0.18
Again, median of the second half of the data set is
= Q₃
= (0.42 + 0.50)/2
= 0.46
The interquartile range
= (Q₃ - Q₁)
= (0.46 - 0.18)
= 0.28
5. mode = 0.12, 0.24
6. Standard deviation is
= √[(x₁ - X)² + (x₂ - X)² + (x₃ - X)² + (x₄ - X)² + (x₅ - X)² + (x₆ - X)² + (x₇ - X)² + (x₈ - X)² + (x₉ - X)² + (x₁₀ - X)² + (x₁₁ - X)² + (x₁₂ - X)² + (x₁₃ - X)²]
Here, x₁, x₂,......, x₁₃ are given data set in ascending order.
X = mean of the given data set.
Therefore, standard deviation is
= √[(0.10 - 0.352)² + (0.12 - 0.352)² + (0.12 - 0.352)² + (0.24 - 0.352)² + (0.24 - 0.352)² + (0.25 - 0.352)² + (0.31 - 0.352)² + (0.36 - 0.352)² + (0.40 - 0.352)² + (0.42 - 0.352)² + (0.50 - 0.352)² + (0.55 - 0.352)² + (0.96 - 0.352)²]
= √[.064 + 0.054 + 0.054 + 0.013 + 0.013 + 0.01 + 0.0018 + 0.00006 + 0.0023 + 0.0046 + 0.023 + 0.039 + 0.37]
= √(.6488)
= 0.81
Therefore, the correct answer is as given above
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The complete question goes thus:
A study was conducted investigating the long-term prognosis of children who have suffered an acute episode of bacterial meningitis, an inflammation of the membranes enclosing the brain and spinal cord. Listed below are the times to the onset of seizure for 13 children who took part in the study [10]. In months, the measurements are: 0.10 0.25 0.50 4 12 12 24 24 31 36 42 55 96 60 Chapter 3 Numerical Summary Measures
(a) Find the following numerical summary measures of the data.
i. mean
ii. range
iii. median
iv. interquartile range
v. mode
vi. standard deviation
Two cars collide. The total momentum in the system before the collision is 2,000 kg*m/s. What is the total momentum in the system after the collision?
Answer:
total momentum of the two cars after they collide= 100 kg m/s
Explanation:
We use law of conservation of momentum which says that , for an isolated system , total momentum before collision is equal to the total momentum after the collision.
Total momentum of two cars before collision= 100 kg m/s
so the total momentum of the two cars after the collision= 100 kg m/s
Explanation:
What is the role of uplift in the rock cycle?
A. to increase the weight necessary for compaction
B. to increase the temperature of rocks to produce magma
C. to expose the rocks for cooling and heating, producing new rocks
D. to expose the rocks for weathering and erosion, producing sediments
Answer:
Im pretty sure its D.
Explanation:
Hope this helps!
complete the following table solution direction of water movement where is the solute concentration hightest?
Hypertonic cells contain more water than their surroundings. A cell is hypotonic if it contains less water than its surroundings. If the cell has the same amount of water, it will be isotonic.
What is osmosis?If the cell has more water than its surroundings, it is hypertonic (think of hyper as having a lot of sugar). The cell will desire to release water. The cell may shrivel or shrink as a result of this. If a cell has less water than its surroundings, it is hypotonic (think hippos). They enjoy eating. The cell will absorb water, which may cause it to enlarge, swell, or even explode. If the cell has the same amount of water/proportion of water to other components, nothing will happen and the cell will be isotonic. (Think solitary, without any interactions with other objects.)
Here,
Hypertonic cells have a higher water content than their surroundings. If a cell has less water than its surrounds, it is hypotonic. Isotonic means that the cell has the same quantity of water.
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Due to biomagnification, which of the following will likely contain the most DDT?
(a) Secondary consumer
(b) Producer
(c) Primary consumer
(d) Tertiary consumer
Due to biomagnification Tertiary consumer will likely contain the most DDT. Correct option (d).
Biomagnification is any concentration of a toxin, such as pesticides, in the tissues of tolerant species at increasingly higher levels in a food chain. This rise might be caused by:
Persistence - a material that cannot be broken down by natural processes.Food chain energetics is the process through which the concentration of a material grows progressively as it goes up the food chain.Low or non-existent rate of internal degradation or excretion of the drug, owing mostly to its insolubility in water.Biological magnification refers to the process by which certain substances, such as pesticides or heavy metals, make their way into lakes, rivers, and the ocean, and then move up the food chain in progressively higher concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which are then eaten by fish, who are then eaten by larger fish, large birds, animals, or humans.
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How does genetic play an important role in variation
he primate emphasis on the visual sense is reflected in all of the following except: Group of answer choices the presence of color vision in most species. the reduction in the size of structures related to the sense of smell. visual information from each eye transmitted to visual centers in both hemispheres. enlarged rhinarium. a more forward-facing position of the eyes relative to most other mammals.
All of the following—aside from most species' lack of color vision—reflect the primate emphasis on the visual sense.
What makes the eyes of primates unique?Their frontal face has eyes that are shielded by bony eye sockets. "Binocular vision" is the term for the resulting overlapping visual fields. Primates can estimate relative distance and motion of an item using this sort of vision, which gives them a wider range of depth perception.
Which of the following traits best describes the order of primates?One or more of the following characteristics set primates apart from other mammals: Short nose, poor sense of smell, prehensile five-digit hands and feet with flat nails instead of claws, unspecialized structure, unspecialized behavior, prehensile five-digit hands and feet,
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Which classes of Cnidarians are considered jellyfish?
Soft-bodied stinging organisms like corals, sea anemones, and jellyfish belong to the phylum Cnidaria (pronounced "nih DARE ee uh").
Is Cnidaria a jellyfish?Corals, jellyfish, and sea anemones are examples of soft-bodied cnidarians. These soft-bodied invertebrates have sac-like digestive cavities and rows of stinging cells in their tentacles, which are utilised for defence and food capture.The majority of modern cnidarians fall into one of four main categories: the sessile Anthozoa (sea anemones, corals, and sea pens); the swimming Scyphozoa (jellyfish) and Cubozoa (box jellies); and the Hydrozoa, a large group that includes all freshwater cnidarians as well as many marine forms and has both sessile members like.Cnidarians are mostly two forms. The polyp shape resembles an anemone. The medusa shape of the jellyfish is created when the polyp shape is turned upside down.To learn more about jellyfish refer to:
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In Drosophila, a female fly is heterozygous for three mutations, Bar eyes (B), miniature wings (m), and ebony body (e). Note that Bar is a dominant mutation. The fly is crossed to a male with normal eyes, miniature wings, and ebony body. The results of the cross are as follows. 111 miniature 101 Bar, ebony
29 wild type 31 Bar, miniature, ebony 17 Bar 35 ebony 26 Bar, miniature 115 miniature, ebony
Interpret the results of this cross. If you conclude that linkage is involved between any of the genes, determine the map distance(s) between them.
There will be 273 in total, and the percentage will be 48.32. The typical combination is B. If there is a cross-over between B and e, the progeny will be BB and Be, small small, which is the typical combination. The calculated factor is 46.37.
The typical combination will be s if there is just one cross-over between B and s. After the transition, it becomes BB, including Bs. Male with typically worn-out wings is crossed with a fly, and the offspring are sent to us so we can analyze them. The B and three small e will be 101 bony. The capital is 31000000 B and with B and s 117 are born. A scale replica of 115 exists. Genotypes are smaller than non-reformed genotypes, including rebound. If there is just one cross between the capital b and the first all, the usual combination will be BB and Bs
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(70 Points!) A. In your own words, explain how biomagnification works. Use a fictional substance in your example.
B. How does this sentence relate to biomagnification? “We learned that the solution to pollution is not dilution.”
Biomagnification refers to the process by which toxins or other harmful substances become more concentrated as they move up the food chain. It occurs when a substance enters an ecosystem and is taken up by small organisms, which are then consumed by larger organisms. Each time an organism is consumed, the substance is concentrated in the body of the larger organism, leading to higher and higher levels of the substance in the organisms at the top of the food chain.
For example, imagine a fictional substance called "X" is released into a lake. The "X" is taken up by small aquatic plants, which are then consumed by small fish. The small fish are then consumed by larger fish, and so on, up the food chain. By the time the substance reaches the top predator in the ecosystem, such as an eagle, the concentration of "X" is much higher than it was in the small aquatic plants at the bottom of the food chain.
The sentence "We learned that the solution to pollution is not dilution" relates to biomagnification because it highlights the idea that simply diluting a pollutant by spreading it out over a larger area does not necessarily make it less harmful. Instead, it may just lead to the pollutant being taken up by more organisms, leading to higher levels of the pollutant in the food chain, and potentially more harm to the ecosystem and the organisms living in it.
If a plant were to be exposed to only red light, would photosynthesis be possible?
a. Photosynthesis does not take place.
b. The rate of photosynthesis increases sharply.
c. The rate of photosynthesis decreases drastically.
d. The rate of photosynthesis decreases and then increases.
The correct answer is c. The rate of photosynthesis decreases drastically.
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose or other sugars. Chlorophyll, the pigment responsible for absorbing light during photosynthesis, absorbs light most efficiently in the blue and red regions of the spectrum, with a peak absorption in the red.
While red light is absorbed by chlorophyll, it is not the most efficient wavelength for photosynthesis. Therefore, if a plant were to be exposed to only red light, the rate of photosynthesis would decrease drastically compared to if the plant were exposed to a full spectrum of light, including blue light.
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epinephrine
norepinephrine
outer brain covering
middle brain covering
cerebrum
[Choose ]
[Choose ]
arachnoid mater
neurotransmitter
dura mater
one of the four major parts of the brain
[Choose ]
[Choose ]
[Choose ]
The arachnoid, a structure resembling a web and filled with fluid, is the middle layer and protects the brain. The durable outer layer is referred to as the dura mater.
What are the 3 different types of brains?There are three fundamental parts of the brain: the forebrain, midbrain, and hindbrain. The cerebellum, a wrinkly ball of tissue, the brain stem, and the upper portion of the spinal cord are all parts of the hindbrain. Vital bodily processes like breathing and heart rate are managed by the hindbrain.
What do you name the brain?Cerebrum. The cerebrum, the bulk of the brain, is made up of the left and right cerebral hemispheres. It's common to refer to the entire brain as the "cerebrum." The line separating the two hemispheres is known as the great longitudinal fissure.
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Help please brainliest if correct!!
Complete the Data Analysis and CER. Be sure to answer ALL the bullet point questions and complete a full CER using the data provided.
On the data analysis and CER of the graph:
The topic of the graph is Life expectancy at birth by gender, years and selected countriesThe x-axis represents countries and the y-axis, the years livedAn observation from the graph is that life expectancy in females are higher than that of males.In the next 10 years, there will be a further decline in the life expectancy of both males and females.What is Data analysis and CER?Data analysis is the process of using techniques and tools to identify patterns, trends, and insights in data. This can include cleaning, transforming, and modeling data to make it more useful for decision making or other purposes.
CER stands for "Causal Effects of Treatments" is a statistical framework for estimating the causal effects of interventions (treatments) on outcomes of interest. It can be used in many fields, such as medicine, economics, and social science, to determine the cause-and-effect relationship in observational studies in this case the life expectancy of both genders from 2019 to 2020.
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Consider the phylogenetic tree of Old World primates.
A cladogram is shown. Humans are at the end. Next is chimpanzees and bonobos, then gorillas, then orangutans, then baboons.
According to the tree, which primates share the most recent common ancestor with humans?
gorillas
chimpanzees
bonobos and chimpanzees
bonobos and gorillas
Answer:
ANSWER: Chimpanzees
Explanation:
The chimpanzee is the creature with which humans have the most recent common ancestor within that clade.
Answer: Technically the answer isnt wrong but its bonobos and chimpanzees
Explanation:
Give two examples of similar adaptations that help a sphynx moth and hummingbird survive. Help
The adaptation that helps the both organisms to survive is the proboscis.
What is adaptation?The hummingbird also has a long proboscis, which it uses to feed on nectar from flowers. It also has the ability to hover in place, which allows it to feed on nectar from flowers that are difficult to access. Additionally, hummingbirds have a high metabolism that allows them to maintain a steady body temperature, and their wings are adapted for fast and agile flight.
Both the Sphynx moth and hummingbird have adaptations that allow them to efficiently feed on nectar, which is their primary source of food. Both species have a long proboscis that allows them to reach deep into flowers and extract nectar. They also have adaptations that allow them to fly quickly and maneuver easily, which helps them to locate and feed on nectar-rich flowers.
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(b) How does the pH value of 1M potassium hydroxide solution compare with that of 1M aqueous ammonia? Explain(2 marks)
K+ and aOH_ ions are how KOH decomposes. The basicity is influenced by the OH- ions. They have a 1M I concentration, the same as KOH. [OH-]=1 M
What potassium hydroxide is used for?A disinfectant used to clean surfaces, hands, and skin is potassium hydroxide. Lye, commonly known as potassium hydroxide, is an inorganic substance with the chemical formula KOH. It is sold in a variety of forms, including pellets, flakes, and powders. Potassium hydroxide, sometimes known as caustic potash, is an inorganic chemical with the formula KOH. KOH is a typical strong basic, along with sodium hydroxide. It has numerous industrial and specialised uses, the majority of which make use of its caustic properties and acid reactivity.
Which foods contain potassium hydroxide?KOH is a typical food ingredient that is utilised in the production of cocoa, chocolate, and soft beverages. It has several qualities, including thickening and stabilising effects in dishes like ice cream. Additionally, KOH makes baked foods like pretzels crispier. It can be used as a preservative in food. Potassium hydroxide is a stabiliser, thickening agent, and pH adjuster in food. Based on the observance of various good manufacturing practise conditions of use, the FDA has determined that this ingredient is generally safe as a direct human food ingredient.
pOH is the negative logarithm of the compound OH; therefore, pOH is -log1, which equals 0. In light of typical settings of 25 degrees Celsius, pH is therefore 14-pOH, or 14. So that is as simple as a solution at 25 degrees can be.
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What is currently being done(regulations, laws, protest,fundraising,ets.) to protect blue whales from going extinct? I need helppppp
The International Whaling has proposed a negative kill limit for bluefin tuna as well as a countrywide ban on commercial whaling.
Why do humans value blue whales?
Although blue whales have a huge food requirement, the ocean environment benefits from them rather than is burdened by them. Their iron-rich excrement is a crucial supply of nutrients for the marine food web, boosting production in the Southern Ocean and increasing fisheries yields.
How do whales protect the environment?
The "whale pump"—the way whales graze, poop, migratory, then dive between the ocean's top and depths—moves vital nutrients around the ocean. Thus, robust water bodies and the development of cyanobacteria are supported, which in turn helps lock in a significant quantity of carbon.
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You have a solution of table salt in water. What happens to the
salt concentration as the solution boils?
Select one:
O a. The concentration of salt increases
O b. The concentration of salt decreases.
O c. The concentration of salt stays the same.
LIMITED TIME! HELP PLEASE!!
A gardener find there are two colored plants growing in their garden.
One plant has pink flowers and the other has blue flowers. How can
the gardener tell if they are the same species?
Select one:
If they produce an offspring that is fertile
If they can produce an offspring
If they cannot produce an offspring
If they produce an offspring that is not fertile
Answer:
If they produce an offspring that is fertile
Answer:
A
Explanation:
Producing an offspring can occur between related but different species, often called "hybrids."
Hybrids cannot have offspring, meaning they are infertile, so it's not B. Very simply put, the reproduction system is closed unless (sometimes) hybrids mate with each other
To be the same species, they need to have offspring that is fertile. Fertile just means you can reproduce.
Matthias Schleidan and Theodore Schwann discovered plant and animal cells. This led to which of the cell theory?
Answer:
He put forward cell hypothesis which states that bodies of animal and plants are made up of cells. Schleiden and Schwann in 1839 compared their findings and formulated cell theory.
hep meeeee pls
1 Answer:
Light waves are
a. electric and soundlike
b. magnetic and soundlike
c. electric and magnetic
d. electric only
2 Answer:
Which of the following does "not" require a physical medium through
which to travel?
a. light
b. sound
c. both light and sound
d. neither light nor sound
3 Answer:
Waves with frequencies slightly lower than those of visible light
are called
a. ultraviolet rays
b. gamma rays
c. X-rays
d. infrared rays
3.Which of the following indicates that light is made up of particles
rather than waves?
a. reflection
b. refraction
c. photoelectric effect
d. bending and separation
4.An object is luminous if it can produce
a. fluorescent light
b. incandescent light
c. neon light
d. all of these
5.Light produced from heat is said to be
a. luminous
b. incandescent
c. illuminated
d. fluorescent
6.Light produced by electron bombardment of low-pressure gases is
a. luminous
b. incandescent
c. illuminated
d. fluorescent
1. Light waves are electric and magnetic. The correct option is C.
2. The option that does "not" require a physical medium through which to travel is light. The correct option is A.
3. Waves with frequencies slightly lower than those of visible light
are called infrared rays. The correct option is D.
4. The option which indicates that light is made up of particles rather than waves is photoelectric effect. The correct option is C.
5. An object is luminous if it can produce fluorescent light, incandescent light, and neon light. The correct option is D.
6. Light produced from heat is said to be incandescent. The correct option is B.
7. Light produced by electron bombardment of low-pressure gases is fluorescent. The corect optrion is D.
What are electromagnetic waves?Waves of the electromagnetic field make up electromagnetic radiation; they travel through space while carrying momentum and radiant energy. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves.
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What must be true about your parents if you have blood type AB and neither of them have blood type AB
Answer:
Both of your parents must have either blood type A or blood type B.
Explanation:
What does Carson mean when she writes, "This town does not actually exist, but it might easily have a thousand
counterparts in America or elsewhere in the world"?
O None of these choices are correct.
O The town she wrote about was fictional, but it was based on real situations that had occurred.
O The town she wrote about was not in America.
O The town she wrote about no longer existed, because everyone was poisoned.
Carson asserts that "this village may easily have such a thousand counterparts in America and around the world" despite not actually existing. Carson was a significant player in the environmental movement of the 1960s.
What is Carson famous for?
Tahoe is well known as an industrial centre with exceptional access to transportation and the Pacific Rim, but it is also a diverse town that really is popular as a place to both live and work.
Carson warns us about this, but why?
Pesticides as DDT—dichloride diphenyl trichloroethane—were being used excessively and indiscriminately to control crop pests, Carson warned. Poisons entered streams after moving up the food chain, putting at risk the delicate ecosystems that feed fish, birds, and eventually humans.
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