Which of the following is not one of the six classes of lipids?
A) steroids
B) terpenes
C) fatty acids
D) triacylglycerols
E) pectins
Answer: E
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Fatter sociable weaver birds spend more time foraging where they are vulnerable to predation, are more attractive to
predators, and are less likely to escape an attack. Conversely, thin birds risk starvation. Therefore, sociable weaver of an intermediate weight have a selective advantage. This is an example of ____ selection.
a. frequentb. directional c. disruptive d. stabilizing e. mutational
Check all of the reasons that temperature is important for organisms.
A. It has a direct effect on blood cell production. B. It affects the fluidity and rigidity of plasma membranes. C. It affects the rate of biochemical reactions.
Similarity resulting from common ancestry is known as ________.
A. natural selection B. homology C. evolution D. taxonomy
In rabbits, there are four different versions of the gene for coat color. What pattern of inheritance is this?
A) codominance. B) polygenic inheritance. C) incomplete dominance. D) multiple alleles.