The tonsils are indicated by ________

The left ventricle is the chamber with the thickest wall, because:

What will be an ideal response?

White blood cells digest other cells and so would be expected to

A. possess cilia on their surfaces so they can move quickly. B. have large numbers of lysosomes. C. excrete excess salt as a result of all this eating. D. expel their nuclei to make room for all of the cells they eat. E. have mitochondria to energize them.

What are the fingerlike projections of the small intestine that increase the absorptive surface area?

A) haustra B) cilia C) villi D) rugae

The cells that form the walls of the brain capillaries have the inherent ability to form tight junctions

Indicate whether the statement is true or false