Answer:
A. ethos
Explanation:
This is an example of Ethos because it is using a credible source source as evidence.
Ecologists use survivorship curves to visualize how the number of individuals in a population drops off with time. In order to measure a population, ecologists identify a cohort, which is a group of individuals of the same species, in the same population, born at the same time.
The female version of the word "dude".
I think its intensive pronoun