Fixed action patterns (FAPs) cannot be modified by learning.

The production of protein by cells is an example of ________.

A) anabolism
B) catabolism
C) glycolysis
D) phosphorylation
E) decomposition

Most of the fossil fuels we consume were formed in the last 1000 years.

Melanin

A) is transferred to other cells by osmosis.
B) is increased with exposure to infrared light.
C) is absent in individuals with albinism.
D) is a pigment produced by cells in the stratum corneum.
E) makes the skin lighter.

The primate fossil named Lucy was a member of the ____ genus.

A) Sahelanthropus
B) Australopithecus
C) Paranthropus
D) Ardipithecus
E) Homo

The X-ray diffraction photography of Rosalind Franklin and Maurice Wilkins was critical to showing that

A) DNA has a double-helix structure.
B) the bases of DNA were held together by hydrogen bonds.
C) DNA has equal numbers of purines and pyrimidines.
D) DNA has deoxyribose sugar rather than ribose sugar.
E) the four bases of DNA are adenine, guanine, cytosine, and thymine.