Hair color (or lack of it) is mostly due to:
A) sweat gland pigments. B) sebaceous gland pigments.
C) activity of melanocytes. D) a colored version of keratin.
Answer: C
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Based on the fossil record, which group appeared first?
a. chimpanzees b. humans c. new world monkeys d. gorillas e. old world monkeys
Influenza infections themselves are usually more annoying than deadly, but the flu can be accompanied by which of the following more serious secondary infections?
A) ear infections B) pneumonia C) bronchitis D) All of the above could be caused by a secondary infection after the flu.
Because women have a broader pelvis, their Q angle is smaller than the Q angle in men
Indicate whether the statement is true or false
Which of the following is associated with the attachment of a bacteriophage to a bacterial cell?
A) random collisions B) chemical attractions C) receptor specificity D) both chemical attractions and receptor specificity E) random collisions, chemical attractions, and receptor specificity