A barrier made up of several layers that stops pathogens from entering the body is
a. the skin. b. white blood cells. c. cilia. d. mucus.

The first generation of offspring from the cross of two parents is called the a. f1 generation b. f2 generation c. short generation d. p generation

Warmer ocean surface water would most likely be found near

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.