Cytotoxic T cells protect the body by . A. secreting toxic substances that destroy pathogens

B. phagocytizing invaders

C. activating the complement system

D. making antibodies that float free in the body fluids

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Did you know that a blue wales tongue weighs more than an elephant?