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ddd [48]
3 years ago
14

What is the function of the respiratory zone?

Biology
1 answer:
Colt1911 [192]3 years ago
3 0
The respiratory zone is the site of 02 and CO2 exchange with the blood;
site of gas exchange.
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What is the best way to determine a species population in an area?
Shtirlitz [24]
B. Subtract those from those in the area from those in or arriving at the area.
7 0
3 years ago
1. In a population of 200 field mice, 98 mice are homozygous dominant for brown fur (FF), 84 mice are heterozygous (Ff), and 18
iVinArrow [24]
A.
The genotype frequencies can be determined by dividing the number of individuals with a genotype by the total number all the individuals. 
FF genotype frequency:
98÷200=0,49. There are approximately 5 <span>homozygous dominant mice in 10.
Ff genotype frequency:
84</span>÷200=0,42. There are approximately 4 <span>heterozygous mice in 10.
ff genotype frequency:
18</span>÷200=0,09. There are approximately 1 <span>homozygous recessive mouse in 10.

B.
To determine the frequency of an allele we can divide the number of times that the allele appears by the total number of alleles.
F allele frequency:
</span>\frac{(98*2)+84}{400}<span>=0.7
There are 7 F alleles in 10 random alleles.
f </span>allele frequency:
\frac{84+(18*2)}{400}=0.3
There are 3 f alleles in 10 random alleles.<span>
</span>
6 0
3 years ago
Which of the following is the limit of science
Snowcat [4.5K]
I don’t think there is a limit in science because we didn’t discover even half of the ocean.
4 0
3 years ago
What molecule is the source of information for transcription.
Grace [21]

DNA is the molecule, which is the source of information for transcription.

• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.

• The RNA polymerase monitors the phenomenon of transcription.

• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.

Thus, the correct answer is DNA.

To know more about:

brainly.com/question/16512679

7 0
2 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!!!!!!
Sever21 [200]

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

3 0
3 years ago
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