Answer:
Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth's tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.
Explanation:
Answer:
A mid-ocean ridge is a place where sea floor spreading occurs. They also form new rocks and mountains.
Explanation:
What is the function of DNA in a cell?
leaves of cactus are modified into thorns
Answer:
To reduce loss of water through transpiration leaves of cactus plants are modified into spines.
Explanation:
Answer:
leaves are reduced to spines in a cactus , so that the water does not get evaporated with the heat of the SUN. 1. They are present in hot deserts which are scarce in water so in order to reduce the loss of water by Transpiration from the surface of the leaves, its leaves are reduced to spines
There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. Microbiologists need to perform a dilution series, where multiple dilutions are performed in sequence to arrive at the correct dilution. Dilutions are cumulative. Multiply the series of dilutions together to find the final dilution value. If 6 serial dilutions are performed, each with a dilution of 0.1, what is the cumulative dilution
Answer:
cumulative dilution = 0.000001
Explanation:
A serial dilution is a stepwise kind of dilution repeated a certain number of times, in which the concentration reduces exponentially each time.
The cumulative dilution is the final dilution gotten depending on the number of times dilution has been done and the dilution factor. The formula is given as:
Cumulative dilution = (F)ⁿ
where:
F = dilution factor = 0.1
n = number of serial dilutions = 6
∴ cumulative dilution = (0.1)⁶ = 0.000001
Why do humans
show variation?
Answer:
gugkugcoytci6r
Explanation:
Causes of Variation:
Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.
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Shelly and Jason are siblings, but Shelley looks like their father while Jason looks like their mother. Which of the following statements best explains the difference in Shelly’s and Jason’s features?
A. Shelly and Jason inherited different combinations of 23 chromosomes from their mother and 23 chromosomes from their father.
B. Shelly inherited a greater number of chromosomes from their father than Jason did.
C. Shelly inherited a smaller number of X chromosomes from their mother than Jason did.
D. Shelly and Jason had different mutations occur in the 46 chromosomes their inherited from their mother and father.
Answer: The answer is D.
HELP ASSAP PLEASE
Which of the following describes how the pollen must travel in order for pollination to occur?
Question 11 options:
. from the stigma to the anther
from an anther to the style
from an anther to the stigma
from the stigma to the pollen tube
Answer:
ewan the anther to stigma pero dapat stamen to the stigma
Answer:
I believe the answer is "from an anther to the stigma"
Explanation:
Because to be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.
Why do viruses not fit easily into the broadest taxonomic category, life? (Choose all that apply)
1. They are not made of cells.
2. They have a capsid.
3. They do not reproduce on their own.
4. They do not respond to stimuli.
Answer:
viruses are not fit into broadest taxanomic system because:
they are not cells
they do not reproduce their own
they do not respond to stimuli.
Explanation:
viruses have capsid and are not cells. to be a cell they must have a cell membrane while viruses lack cell wall. they replicate by using the host machinary in which they are causing infection. they are acellular and obligate intracellular parasites of anials plants fungi and bacteria.
Answer:
they are not cells
they do not reproduce their own
they do not respond to stimuli
Explanation:
and i just took a test about this
Using a codon table, which amino acid is coded for by the codon G-G-G?
Answer:
Glycine
Explanation:
All of the following are characteristics of cancer cells except
a. No apoptosis
B. Ability to metastatize
C. Angiogenesis
D. Unregulated mitosis
E. Unmutated DNA
Answer:
i think it is c
Explanation:
The option that is not characteristics of cancer cells is E (Unmutated DNA).
Cancer is caused mutations or abnormal activation of cellular genes that control cell growth and cell mitosis.
The characteristics of cells that are cancerous include:
No apoptosis: Apoptosis is programmed death of a normal cell. This doesn't occur in cancer calls as the cells continue to divide giving rise to malignant cells.
Ability to metastatize: This is the ability of cancer cells to migrate to other normal cells and tissues of the body. This so because they are less adhesive to one another.
Angiogenesis: This is the ability of cancer cells to form new blood vessels that supplies blood to it for its nourishment.
Unregulated mitosis: This is the ability of cancer cells to grow without the usual cellular growth limits.
Mutation is the abnormal changes that occur in the deoxyribonucleic acid of a cell.
Cancer cell develop due to mutation of antioncogenes, which are genes present in cells which suppress the activation of oncogenes that lead to cancer.
Therefore, the option that is not a characteristics of cancer cells is E (Unmutated DNA).
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Claim: Warmer weather caused Galetown to have more severe storms.
can you explain why this happens please?
Answer:
Warmer weather caused Galetown to have more severe rainstorms. When the temperature of an air parcel starts out higher, it will have to rise higher in the troposphere before the temperature of the air parcel and the surrounding air are equal. When the temperatures become equal the air parcel will stop rising.
Explanation:
Answer: When the temperature of an air parcel starts out higher, it will have to rise higher in the troposphere before the temperature of the air parcel and the surrounding air are equal. When the temperatures become equal the air parcel will stop rising.
Explanation: Add me as a friend!!! <3
What is the energy released from ATP used for?
g One benefit of operons in bacteria is that they a. do not need ligands and regulatory proteins as single genes would. b. do not need any modification of the proteins after they are expressed. c. allow for alterations in DNA sequence by flipping promoters around. d. allow for coordinated gene expression of related genes on one mRNA controlled by one promoter. e. allow the bacteria to use a wide variety of carbon sources.
Answer:
d. allow for coordinated gene expression of related genes on one mRNA controlled by one promoter.
Explanation:
An operon is a group of functionally-related genes that share the same promoter region and the same operator which interacts with specific repressors or activators, and they are transcribed as a unit. This transcriptional unit (operon) is present in prokaryotic organisms (i.e., bacteria and archaea) but absent in eukaryotes. In an operon, each structural gene is known as a cistron, and they are transcribed together as a polycistronic primary messenger RNA (mRNA).
Which pair of nitrogenous bases will form a bond in a DNA molecule? *
A. cytosine and adenine
B. adenine and thymine
C.guanine and thymine
thymine and cytosine
мо
Answer:
B. Adenine and Thymine. :)
Select the correct answer.
Maria is interested in community development programs. She is very concerned with the increasing industrialization in her community as it is
leading to high levels of air pollution. Which of these can Maria promote in her community to reduce pollution and global warming?
O A.
ban on the factories
OB.
plant more trees
OC.
burn all the waste
OD.
use aerosols and refrigerators with CFC
Explain why two blond, straight faired parents cannot give birth to a brown, curly haired child.
Answer: genetics!!!!!
Explanation: If you both have blonde hair you wouldnt be able to give to a brown hair child!!! If you both have straight hair then your child shouldn’t have curly hair , it’s not possible.
Please help Thnks ❤️
a they teach you in school
in prokaryotes ribisomes are found in?
Answer:
the cell
Explanation:
Answer:
The cell
Hope I helped
Do you think murder committed during sleep walking is a punishable offense? Why?
Answer:
no because ur sleep walking and u cant control that
Answer:
yes and no
Explanation:
because when your asleep you dont know what your doing and when you get woken uo you tend to get violent so yea
How many X chromosomes do females have?
Answer:
Typically, biologically female individuals have two X chromosomes
Explanation:
hope this helps! :)
explain the advantage of the synaptic cleft being so small
Answer:
The size of the synaptic cleft is small which results in the neurotransmitters to pile up over time thus making the neurotransmitters' concentration increase and therefore can proceed with their function of sending nerve impulses. Hope that helped!
Explanation:
You have a solution in lab and increase the hydroxyl ion concentration. what is the impact on the pH of the solution.
A. The pH stays the same.
B. The pH rises.
C. The pH decreases.
Answer:
it will option C. hope it helps
Why doesn't the North Pole have frost action?
In snapdragons, tallness (T) is dominant to dwarfness(t), while red color is due to gene (R) and white to its corresponding allele (r). The heterozygous condition results in pink (Rr) flower color. Describe the genotypes and phenotypes of the offspring in a cross between a heterozygous tall snapdragon with pink flowers and a dwarf snapdragon with white flowers. Check all that apply. *
Answer:
Hi how are you doing today Jasmine
What types of cells carry out photosynthesis?
Plant
Animal
Yeast
All of the above
On the cellular level, the reactions for photosynthesis occur in organelles called chloroplasts (in eukaryotic cells). Blue-green algae (which are prokaryotic) carry-out the photosythesis reactions in the cytoplasm.
So all of the above
The user needs to drag the slider bar in an upwards direction in order to completely melt away a body layer when in the dissection study area.
True or False
Answer:
False
Explanation:
During the dissection study the body is kept in laying position so that the scientist can easily perform experiments. The body is kept in laying position not in upward position. The body in upward position will have gravitational effect on the fluids and the body layer will not melt.
What is an allele?
A.
a form of a gene
B.
a hairstyle
C.
a physical trait
Answer: Your answer would be A
Explanation:one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Answer:
a form of a gene
Explanation:
This picture shows different amounts of space in between the particles of two
different soil samples.
Which word best describes what we are seeing?
Answer:
Porosity
Explanation:
I had another question like this and it was B so there u go
Meaning of soil porosity: Pore-spaces, also known as voids, are the area of the soil's volume that is not occupied by solids, either mineral or organic, hence option B is correct.
What is soil porosity?
Under field conditions, air and water are always present in the pore space. The amount of water that a specific volume of soil can hold depends on the amount of pore space.
How many pores, or holes, a soil has is referred to as its porosity. A proportion of the total volume of the soil material is used to measure a soil's porosity.
Soil particles are defined as those that are 2 mm in diameter or smaller and make up the inorganic component of soil. Sand, silt, and clay are the three types of soil particles.
Therefore, Porosity is a crucial indicator in locations where groundwater reserves supply drinking water.
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what is gene??,,,????
How do limited abiotic resources impact the overall biotic organisms in an ecosystem?
Answer: Abiotic variables found in terrestrial ecosystems can include things like rain, wind, temperature, altitude, soil, pollution, nutrients, pH, types of soil, and sunlight. ... Limiting factors keep populations within an ecosystem at a certain level. They may also limit the types of organisms that inhabit that ecosystem.
Explanation:
Sequence of dna that is not involved in coding for a protein
Answer:
Transfer RNA, Ribosomal RNA, and Regulatory RNAs
Explanation:
Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules.
Answer: Ribosomal RNA, Transfer RNA, and Regulatory RNAs.
Explanation: The introns do not code for any protein and are removed from the mRNA before it is made into protein.