During which stage of photosynthesis is oxygen produced? A. Calvin Cycle
B. Electron Chain
C. Light dependent
D. Light independent

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

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.