A pyramid of energy can be used to illustrate the loss of usable energy at each feeding level in a food web. In which feeding level would the smallest amount of energy be found?

autotrophs
producers
primary consumers
secondary consumers

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose