Antitoxins select one: a. contain modified bacterial exotoxin molecules. b. are always genetically engineered. c. confer passive immunity. d. utilize dna strands that will produce the antigen. e. contain select antigenic components of a pathogen rather than whole cells or viruses.

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division