This type of lipid is found in pigments such as chlorophyll, in the visual pigment retinal, and in rubber:
A. steroid.
B. wax.
C. prostaglandin.
D. terpene.
E. phospholipid.
D. terpene.
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Why are epithelial membranes not very thick?
A. Epithelial tissues are required to support other cells growing on top of the tissue. B. Epithelial tissues play a critical role in transport, and must be thin to allow diffusion to occur. C. Epithelial tissues can only reach a certain thickness because their growth is constrained by microtubules inside the cell membrane. D. Thick epithelial tissues would collapse due to the drying effect of the environment. E. Epithelial tissues are programmed to stop dividing after only a few cell cycles.
"N" is the elemental symbol for
A. nickel. B. nitrogen. C. neon. D. magnesium. E. copper.
Consider the Alexander paper (1961) on the aggressive nature of male crickets. Which one of the following is NOT a behavior typically seen during a fight between the dominant and subordinate crickets?
A. Using front legs to damage head and antennae B. Lifting the tegmina and stridulate C. Shaking the entire body D. Dashing or running forward toward the aggressor E. Rearing up on back legs to seem larger in size
A metabolic disorder characterized by high blood glucose levels is known as:
What will be an ideal response?