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erastovalidia [21]
3 years ago
12

Which of the following is a reservoir for carbon and nitrogen, but not phosphorus?

Biology
2 answers:
gayaneshka [121]3 years ago
8 0
The atmosphere

Is not a reservoir for phosphorus.
Step2247 [10]3 years ago
6 0

Answer: The atmosphere is not a reservoir of the phosphorus but is a great reservoir of carbon and nitrogen.

This is because the carbon and the nitrogen are present in abundant amount in the atmosphere but the reservoir for phosphorous is rock.

It is not found in the atmosphere even if it is found the quantity is very low.

Carbon and nitrogen are formed by the carbon and the nitrogen cycle.

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DNA sequences can act as "tape measures of evolution". Some highly conserved regions of the human genome (similar to comparable
Lubov Fominskaja [6]

Explanation:

The DNA contains many regulatory sequences that are very important, even though they do not code for proteins.

For example, the expression of every gene is regulated by a region called the Promoter. The promoter sequence, located close by the coding region of the gene, usually binds the RNA polymerase (the enzyme that transcribes genes into mRNA) as well as other proteins necessary for transcription,

The promoter sequence, thus, does not itself code for proteins, but is essential for transcription and must be highly conserved so that the RNA polymerase can find it.

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2 years ago
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You are studying a population of ground squirrels. You trap 100 individuals and find 9 that have a light colored coat, and the r
Genrish500 [490]

The question is incomplete. Here is the complete question.

You are studying a population of ground squirrels. You trap 100 individuals and find 9 that have a light colored coat and the rest have a dark coat. You know that light coat color is recessive in ground squirrels. What is the allele frequency for the light coat allele  and the dark coat allele? How many of the dark coated individuals do you expect to be heterozygotes at the coat color gene? Assume the population is at H-W equilibrium.

Answer: Allele frequency for light coat: q = 0.3;

              Allele frequency for dark coat: p = 0.7;

             There will be 42 heterozygote;

Explanation: A population in H-W equilibrium is a population which doesn't change from one generation to the next if there are no disturbing factors, as migration or mutation.

It follows the equation: p^{2}+2pq+q^{2}=1.

p represents the frequency of the dominant allele;

q represents the frequency of the recessive allele;

2pq represents heterozygote individuals;

The sum of frequencies of both alleles must be 1, i.e.: p+q=1

For the population of squirrels:

  • Frequency of recessive allele

q^{2} = \frac{9}{100}

q = \sqrt{\frac{9}{100}}

q = 0.3

  • Frequency of dominant allele

p+q=1

p=1-q

p=1-0.3

p = 0.7

  • Frequency of heterozygote

2pq = 2*0.7*0.3 = 0.42

In a population of 100 individuals: 0.42*100 = 42

The allele frequency for the light coat is 0.3; for the dark coat is 0.7.

It is expected to have 42 heterozygote individuals in this population.

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3 years ago
All cells have DNA that must be replicated True or false
Stolb23 [73]

The answer is True.

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2 years ago
A raccoon consumes 500 calories of food. 50 of those
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Answer:

10 % of the energy (i.e., 50 calories) is converted to biomass . This efficiency of energy transformation is high

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2 years ago
What are some examples of environmental resources?
Gemiola [76]
Hi there!

Here are some examples of Enviormental resources:

#1 Coal

#2 Gold

#3 Gas

#4 Iron

#5 Copper

#6 Petroleum

Hope this helps you!

~DL ☆☆☆
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3 years ago
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