A liquid is matter that A. has a definite volume and takes the shape of its
container.
B. has a definite shape and won't take the shape of its
container.
C. has no shape, and its volume changes randomly.
D. has a volume that changes with its container.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.

Which of the following statements accurately defines epidermis? a. a thick protein fiber composed of the protein collagen b. hard, dense bone tissue found on the outer surface of a bone c. single layer of epithelial cells and the underlying basal lamina d. outer, protective layer of the skin composed of stratified squamous keratinized epithelial tissue