Answer:
The biologist is studying about the ecological community.
Explanation:
The ecological community refers to the community in which population of different types of species survives together. As the biologist is observing about the interaction of different populations of Pennsylvania region, it can be inferred that the he is studying about the ecological community of Pennsylvania region.
The population surving in the community interact with each other through different modes of interaction. It may either parasitic, or mutual, or competitive or predication or commercialism.
the following what anyways it means the formation of a number of things into a cluster. i hope it helped
The purpose of both mitosis and meiosis is to increase the number or population of cells in the body.
<h3>Compare mitosis and meiosis type of cell division</h3>
Mitosis produces two diploid (2n) cells that are identical to the original parent cell whereas meiosis produces four haploid (n) cells that are different from the original parent cell.
Mitosis occurs in somatic cells whereas meiosis occurs in reproductive cells.
So we can conclude that the purpose of both mitosis and meiosis is to increase the number or population of cells in the body.
Learn more about mitosis here: brainly.com/question/19058180
A. The amount of carbon dioxide a person releases into the atmosphere
Thyriod gland is the right answer
