A comparison between what happens with the red dye in the water bin with what happens to a hot air balloon surrounded by cool air is given below.
1. The red dye in the water bin mixes and diffuses evenly throughout, much like the hot air balloon surrounded by cool air, which causes the air inside the balloon to cool and become more uniformly distributed.
2. The red dye in the water bin disperses evenly and gradually, just like the hot air balloon which gradually loses the heat and descends as the air around it becomes cooler.
3. The red dye in the water bin spreads out, taking on the shape of its container, similar to the hot air balloon which expands or contracts to match the surrounding air pressure.
What is a Dye?
A dye is a colored substance that is used to color fabrics, paper, and other materials. Dyes are usually applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the material.
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Put the following phyla in order from least diverse (in terms of number of named species) to most diverse: Annelida, Mollusca, Arthropoda, Rotifera.
a. Annelida, Rotifera, Mollusca, Arthropoda
b. Mollusca, Rotifera, Annelida, Arthropoda
c. Rotifera, Annelida, Arthropoda, Mollusca
d. Rotifera, Annelida, Mollusca, Arthropoda
d. Rotifera, Annelida, Mollusca, Arthropoda
Rotifera is a phylum that contains around 2000 known species, which makes it the least diverse among the four phyla mentioned. Annelida is a phylum that contains around 15,000 known species, which makes it slightly more diverse than Rotifera but less diverse than Mollusca and Arthropoda. Mollusca is a phylum that contains around 85,000 known species, which makes it more diverse than Annelida but less diverse than Arthropoda. Arthropoda is the most diverse phylum among the four mentioned, with over 1.2 million known species. It contains a wide range of animals, including insects, crustaceans, arachnids, and millipedes. Arthropoda is the most diverse animal phylum known to man.
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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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Urban sprawl uses much land for housing.
between sprawling residential areas and downtown
economic areas require the use of automobiles, which
pollute the environment and increase traffic, People
who cannot afford automobile transportation are
disproportionately affected, as they are shut out from
either the economic areas or desirable living spaces
n the residential areas. Explain how this situation
5 unsustainable across all three dimensions of
ustainability.
Urban sprawl has been correlated with increased energy use, pollution, and traffic congestion and a decline in community distinctiveness and cohesiveness.
What is environment?Environment can be summed up as the effects of all the living and non-living things that have an impact on human life. Non-living or abiotic elements include water, land, sunlight, rocks, and air, whereas all living or biotic elements are animals, plants, forests, fisheries, and birds. All living and non-living things that occur naturally, or in this case, without the use of artificial means, are included in the natural environment or natural world. The phrase is most frequently used in reference to Earth or certain regions of it. The term "environment" refers to everything around us. It may include both biotic and abiotic (non-living) things. The external circumstances, resources, stimuli, etc. that an organism interacts with make up its environment.To learn more about abiotic refer to:
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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
discuss differences between dicot and monocot plant in terms of external structure
The difference between dicot and monocot plants in terms of external structure are:
1. Leaf structure:
Dicot leaves have a network of veins and tend to be arranged in pairs opposite each other on the stem. Monocot leaves, on the other hand, have parallel veins and are usually arranged in sets of three or more.2. Flower structure:
Dicot flowers typically have four or five petals and sepals that are arranged in a spiral pattern.Monocot flowers usually have three petals and sepals that are arranged in a symmetrical pattern.3. Root structure:
Dicot plants tend to have a taproot system, which is a single main root that branches off into smaller roots. Monocot plants typically have a fibrous root system, which is a network of many thin roots that branch off from the base of the plant.4. The number of cotyledons:
Dicots typically have two cotyledons, or embryonic leaves, in the seed.Monocots typically have one cotyledon in the seed.5. Stem structure:
Dicots have a ring of vascular bundles that surrounds the stem.Monocots have scattered vascular bundles throughout the stem.To learn more about dicots and monocots:
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If ouabain was used to block Na+–K+-ATPase pumps, A) the concentration of K+ would be equal on both sides of the membrane.
B) the cell would maintain steady state with a different membrane potential. C) the membrane potential would become more negative. D) Na+ would go to equilibrium across the cell membrane
If ouabain was used to block Na+–K+-ATPase pumps, the cell would maintain a steady state with different membrane potential. Here option B is the correct answer.
Ouabain is a drug that blocks the activity of the Na+–K+-ATPase pumps, which are responsible for pumping potassium ions (K+) into the cell and sodium ions (Na+) out of the cell.
By blocking these pumps, ouabain prevents the maintenance of the normal concentration gradient of K+ and Na+ across the cell membrane, and as a result, it alters the membrane potential. The membrane potential would not become more negative and the Na+ would not go to equilibrium across the cell membrane.
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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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Question 24 Which of the following is NOT a reagent typically used in modern PCR? O Template DNA O Taq polymerase
O DNA polymerase from E. coli
O Primers O Nucleotides
Nucleotides is NOT a reagent typically used in modern PCR.
Nucleotides are the building blocks of DNA and RNA. They have genetic material in them. As coenzymes, nucleotides are necessary for enzymes to catalyse various biological processes. Energy is kept in our bodies as ATP.
All living creatures use nucleosides to encode, transfer, and express their genetic information. DNA and RNA's building blocks, nucleotides, are nucleic acids. A nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group make up a nucleotide.
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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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how many years can mosquitoes lie dormant
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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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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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:
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.
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 statements is not true of both pcr & dna sequencing?
a. Both use ddNTPs to prematurely terminate DNA synthesis. Many viruses contain the reverse transcriptase enzyme. Because it produces DNA in vitro, it is not employed in the Sanger method.
DNA polymerase primers, in letter A. This is false because the in-vitro synthesis of DNA must first be started before DNA polymerase primers can be used. The polymerase chain reaction can enzymatically amplify certain DNA segments up to a million times, specified by the sequence of two oligonucleotides (PCR). The creation of sequencing templates, either directly from genomic DNA or from cloned inserts, is one of the technique's most important applications.
The complete question is:
Which of the following statements is NOT true of both PCR & DNA sequencing?
Select one:
a. Both use ddNTPs to prematurely terminate DNA synthesis
b. Both require a primer for initiation
c. Both are based on in vitro DNA synthesis
d. Both use DNA polymerase to catalyze the reaction
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Why are dATP, dCTP, dTTP and dGTP added to a PCR reaction tube?
They catalyze the polymerase.
They provide the building blocks of DNA.
They buffer the mixture.
They allow the DNA in the sample to anneal.
The dATP, dCTP, dTTP and dGTP are added to a PCR reaction tube because they provide the building blocks of DNA.
Members of the dNTPs include deoxyadenosine triphosphate (dATP), deoxythymidine triphosphate (dTTP), deoxycytidine triphosphate (dCTP), deoxyguanosine triphosphate (dGTP), and deoxyuridine triphosphate (dUTP). ) It is included.
Deoxynucleoside Triphosphates (dNTPs) dNTPs are composed of four basic nucleotides, dATP, dCTP, dGTP, and dTTP, as building blocks of new DNA strands. These four nucleotides are usually added to the reaction PCR reaction tube in equimolar amounts for optimal base incorporation. The main components of a PCR reaction are Taq polymerase, primers, template DNA, and nucleotides (DNA building blocks). The components are assembled in a tube along with the necessary cofactors for the enzyme and undergo repeated heating and cooling cycles to allow DNA synthesis.
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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.
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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The element boron has
[how many valence electrons.
Answer:
3
Explanation:
When counting valence electrons you only look at the columns from 1-2 and 13-18
Notice how when counting, there are 8 columns, with the Noble gases being on the very right with a full shell of 8 valence electrons. Hence when counting from left to right, add a VE for every column (skip the transition metals)
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.
Which of the following is a likely consequence of the thinning of the ozone layer?
a. Increase in lethal and nonlethal skin cancers.
b. Increase in the escape of heat from the Earth.
c. Global warming.
d. Elimination of flying insects.
HELP!!!! LIMITED TIME!!!!!!!!!!!!
Why is it helpful to study embryonic structures when determining
evolutionary relationships?
Select one:
A. All animals look the same as embryos.
B. All animals have completely different embryonic structures.
C. Embryos are not used to assign evolutionary relationships; only
adult organisms.
D. Animals with a shared ancestor may have similar characteristics as embryos that disappear as adults.
Answer:
D. Animals with a shared ancestor may have similar characteristics as embryos that disappear as adults.
Explanation:
Homologous structures are often seen in organism that share a common ancestor. Animals who share an ancestor tend to show these structures at their embryo stage even if they disappear later.
Like humans to fish to chicken and other animals show a tail during embryo even if it disappears later.
Complete the sentence. Lobbyists of ______________ use access to political leaders and other federal members to attempt to influence environmental policy.
the courts
Congress
interest groups
the presidency
Lobbyists of interest groups use access to political leaders and other federal members to attempt to influence environmental policy and is therefore denoted as option C.
What is Interest group?They are also referred to as advocacy group, or pressure group, and consists of any association of individuals or organizations that seeks to influence public policy on the basis of a particular common interest or concern.
They do that as a result of the access they have to political leaders and other federal members through various means such as affiliations etc. They do that so as to benefit from them through the various rule and laws passed by them as the political leaders are usually in charge of them due to them being placed in the different arms of government and is therefore the reason why it was chosen as the correct choice.
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PLEASE HELP
Amino acids are the monomers of
proteins. What are proteins?
A. polymers
B. chemical reactions
C. muscles
25 points help please
A litter of 6 kittens are born to the same parents. Some kittens have gray fur and some kittens have black fur.
Which statement about the kittens' genetic information is true?
Question 17 options:
They carry mutations in the gene for fur color
They all inherited identical genetic information from their parents
They have different alleles for fur color
Some kittens have more genes for fur color than others
Answer:
They have different alleles for fur color
Explanation:
In a chromosome the alleles are either dominant or recessive, The parents fur color will decide causing different fur colors.
What do you think would happen to a plant leaf if the
stomata were on the top side of the leaf and always
open? Explain your answer.
If the stomata were on the top side of the leaf and always open, the plant leaf would likely overheat and dry out due to increased exposure to direct sunlight.
What do you mean by stomata?
Stomata are microscopic pores found on the surface of plant leaves and stems. They are responsible for controlling the exchange of gases such as oxygen, carbon dioxide and water vapor between the plant and the atmosphere. They also regulate the amount of water lost through transpiration.
The plant would quickly lose its moisture through transpiration, and the leaf may become damaged or die. Additionally, the plant would be unable to absorb carbon dioxide for photosynthesis, resulting in stunted growth and poor health.
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Which of the following is an adaptation that enhances the uptake of water and minerals by roots? a. mycorrhizae b. pumping through plasmodesmata c. active uptake by vessel elements d. rhythmic contractions by cortical cells
Mycorrhizae is an adaptation that enhances the uptake of water and minerals by roots.
Mycorrhizae are the associations that exist between fungi and roots.
In around 90% of all terrestrial plants, these symbiotic relationships can be discovered.
A root-like structure and a network of mycelium that spreads into the soil outside of the tree roots make up the mycorrhizal fungi.
By taking in nutrients, this mycelium then transfers those nutrients back towards the host plant.
The absorption surface area of the root system grows as a result. The plant can get more moisture and nutrients because its mycorrhizae, or roots, are significantly larger. This is crucial for phosphorus uptake, which is one of the main nutrients that plants need.
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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!