What is the definition of a mutation?
a. Inheritable change in a cell
b. specialization of cells
c. plan for treatment of an illness
d. cell division
e. giving radiation in small doses
a. inheritable change in cells
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Vitamin D can be synthesized by the body from a derivative of cholesterol. Given this information, predict vitamin D's solubility
A. Vitamin D is water-soluble. B. Vitamin D is fat-soluble. C. Vitamin D is soluble in both water and fat. D. Vitamin D is not soluble in either water or fat.
If free to move, a molecule will always move from an area of higher concentration to an area of lower concentration.
a. true b. false
Which of the following would be composed of smooth muscle?
A) Ventricles of the heart B) Muscles of the uterus C) Muscles that allow you to cross your eyes D) Quadriceps (leg muscle)
In your backyard you overturn a large rock. In the damp soil underneath the rock, you see various insects scurrying for cover: two black beetles, five black ants, two brown beetles, and three pillbugs. In this community of organisms, relative abundance
favors A) pillbugs. B) ants. C) beetles. D) pillbugs and beetles equally.