Which of the following is NOT a characteristic of land plants?
A. Alternation of generations
B. Prokaryotic
C. Photosynthetic
D. Cell walls containing cellulose
Answer: B. Prokaryotic
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Giardiasis may be contracted from
A. another person. B. clear mountain streams. C. chlorinated city water. D. cold filtered beer. E. another person, clear mountain streams AND chlorinated city water
What do you know about phosphorylation of a protein? What other information is related to the question?
What will be an ideal response?
Based on the illustration, a patient with a mutated form of phosphoglycerate kinase will develop a chronic buildup of which molecule?
a. adenosine triphosphate
b. glyceraldehyde-3-phosphate
c. 1,3-bisphosphoglycerate
d. 3-phosphoglycerate
Which of the following best explains why anabolic steroid abuse by male athletes can lead to a decrease in testes size?
A) High levels of anabolic steroids cause the adrenal glands to release more estrogen. B) Circulating anabolic steroids increase the release of FSH and LH, which slow down growth and function of the testes. C) High levels of anabolic steroids increase the production of testosterone through positive feedback, which decreases the size of the testes. D) High levels of anabolic steroids decrease the production of testosterone through negative feedback, which decreases the size of the testes. E) Circulating anabolic steroids decrease the release of FSH and LH, which slow down growth and function of the testes.