The letter “A” in the above figure represents which
teeth?
a. incisors
b. molars
c. canines
d. premolars
e. none of these
Answer: b
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Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group, an amino group, a carbon containing group, and a hydrogen atom are called:
A. amino acids. B. fatty acids. C. enzymes. D. peptides. E. nucleotides.
What is a factor that drives animal migration?
A. seasonal availability of food B. nest availability C. hunting pressure D. intraspecific competition E. tidal patterns
Which of the following choices represents an informal grouping of anaerobic chemoautotrophs that form ATP by removing electrons from hydrogen gas or acetate?
a. extreme thermophiles b. extreme halophiles c. acidophiles d. methanogens
Tightly curled or wooly hair is caused by a dominant gene in humans. If a heterozygous curly-haired person marries a person with straight hair, what percentage of their offspring would be expected to have straight hair?
A) 75% curly B) 50% straight C) 25% curly D) 100% straight E) It is impossible to predict the outcome.