How do CAM plants photosynthesize under bright hot conditions without drying out? A. by allowing small openings in their leaves to admit more carbon dioxide
B. by lowering the amount of ATP required for the Calvin cycle
C. by using the C4 pathway
D. by sealing their leaves against water loss and trapping carbon as organic acids

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

Cells control gene expression at which steps