Only a fraction of the genes in a cell are expressed at any one time. The variety of gene expression profiles characteristic of different cell types arise because these cells have distinct sets of transcription regulators
Hope this helped you
Answer:
The bright colors act as a warning
Explanation
Bright colors on an animal are typically a sign that an animal is poisonous, such as the colors on a poison dart frog.
<span>Stratum Basale, being the deepest stratum of skin, will be supplied with the highest levels of oxygen from the blood. The Stratum Basale is constantly renewing and must be supplied with oxygen in order to keep renewing. The other stratus are more superficial and further from the blood source and also do not require quite as much oxygen.</span>
The given statement is true.
The three procedures for finding population size are mark and capture, observation, and sampling. Observation is done by just watching the size of the population. Another procedure is a practice known as mark and recapture, in this the animals are first captured, marked and left in the environment.
Finally, the procedure of sampling is attained by counting the animals in a small region and then assessing.
