Which of the following are examples of active transport that cells use to maintain homeostasis? (mark all that apply)

Models are non-visual ways of coummincating how someone thinks about something in the natural world

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry