Which is a way in which exocytosis differs from the pumping of calcium ions against a concentration gradient?

A. Exocytosis is a form of passive transport.
B. Exocytosis does not involve a carrier protein.
C. Exocytosis occurs with the concentration gradient.
D. Exocytosis requires an expenditure of energy by the cell

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !