If a person has a deficient intake of calcium in the diet, what will be the result?
a. no change in levels of calcium in the blood because calcium will be pulled from the bones
b. reduced absorption rate of calcium by the body
c. lowered levels of calcium in the blood because the calcium in bone cannot be withdrawn
d. a gain of body weight

Lupe is a carrier for color blindness. her husband clifford is colorblind. if lupe and clifford have four children, what's the probability of a boy being colorblind?

The model illustrates a process by which a substance is taken up by a cell. which statements describe the process? a. the model shows the process of endocytosis. b. the process shown in the model requires energy from the cell. c. the cell membrane in the model remains intact throughout the process. d. the model shows the process of facilitated diffusion.

Mitosis occurs in a step by step sequence. predict what would happen if a step was missing or the sequence got out of order. explain!