Carbohydrates ____
a. act as energy sources for cells
b. include fats and oils
c. are made of nucleic acids
d. act as protein builders
e. are also called steroids
a
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The type of vaginitis referred to as bacterial vaginosis is thought to be caused by:
a. Gardnerella vaginalis. b. S. agalactiae. c. Lactobacillus spp. d. Enterococcus spp.
Extinction is an example of a ____
a. microevolutionary change b. macroevolutionary change c. natural selection d. Mendelian genetics e. "hopeful monster"
Which of the following are characteristics of hagfishes?
A. They have a notocord composed of cartilage. B. They have a cranium and vertebrae. C. They have a cranium and a notocord composed of cartilage. D. They have a cranium. E. They have vertebrae.
In birds, sex determination is:
A) similar to that in humans, in which the father has one copy of each of two different sex chromosomes. B) opposite of that in humans, because the mother has one copy of each of two different sex chromosomes. C) based on temperature. D) based on the males being haploid and the females being diploid. E) based on the males being diploid and the females being haploid.