Which part of the Pakicetus anatomy most suggests that it is an ancestor of whales?

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.