PLSS NEED THIS ASPA

If the producer trophic level started with 1000 units of energy, what
amount of energy will the primary consumer trophic level have?

A. 1 unit
B. 10 units
C. 100 units
D. 1000 units

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.