Ethanol is an alternative fuel made from corn. What is one of the unfavorable effects of using ethanol as a fuel?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Science which of the following is an example of a cyclic behavior that is seasonal? i think the answer is d, i just need to double check : ). a. running from predators. b. searching for water. c. hunting at night. d. migrating for warmth. ***

The solution inside a plant cell is approximately a 1% saline solution and a 21% nacl solution the ,cytoplasm of a plant cell will