Animals that consume both plant material and other animals are called
A. omnivores.
B. detritivores.
C. herbivores.
D. carnivores.
Answer: A
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Which statement about Ras proteins is false?
a. They are G proteins. b. They include MAP kinases. c. They are active when bound to GTP. d. They are inactivated when phosphorylated. e. They are activated by tyrosine kinase receptors
New government regulations require that foods containing trans fats be labeled appropriately. A trans fat is formed when food manufacturers turn liquid oils into solid fats by adding hydrogen to vegetable oils
This hydrogenation process produces a solid fat because adding the hydrogen A) causes a phospholipid to form. B) allows fats to form tertiary and quaternary structures. C) forms a wax molecule. D) allows the fatty acid chains to pack together more tightly.
If a chemical agent acted to make the nuclear envelope pores impermeable to the passage of hormones, what effect would it have?
A. Both steroid and non-steroid hormones would continue to be effective. B. Neither steroid nor non-steroid hormones would be effective. C. Non-steroid hormones would continue to be effective but steroid hormones would be ineffective. D. Steroid hormones would continue to be effective but non-steroid hormones would be ineffective.
Chromosomes are aligned at the center of the cell during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase.