Ectothermic animals:
a. are more likely to use metabolism for heat
b. shun the sun during the daylight hours
c. are more adapted to cold
d. are more likely to use behavioral temperature regulation
e. maintain their body temperature within a narrower range
d
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Which of the following statements does NOT describe characteristics of heterospory?
A. Heterospory involves production of spores on two different parts of the same plant. B. Heterospory involves production of two different kinds of spores, one growing into male gametophytes and the other into female gametophytes. C. Heterospory increases the chance of cross-fertilization. D. Heterospory increases the potential for genetic variation and aids evolutionary flexibility. E. Heterospory only occurs in vascular plants.
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.
What is the major lipid found in membranes?
A. steroids B. cholesterol C. triglycerides D. phospholipids E. saturated fatty acids
Arch, cellulose, and glycogen have all of the following in common EXCEPT:
a. They are complex carbohydrates. b. They are composed of glucose molecules. c. They contain hydrocarbon chains. d. They contain oxygen, carbon, and hydrogen atoms