Which stage in reproduction and development
occurs before the others?
a. cleavage
b. gamete formation
c. gastrula formation
d. zygote formation
e. blastula formation
B
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Maintaining a steady-state internal environment, despite a changing external environment, is called ________.
A. heterostasis B. homeostasis C. biofeedback D. bioregulation
Which two structures (found in different organisms) both serve to increase the absorptive surfaces of the intestines?
a. choanocytes and gastric ceca b. choanocytes and proventriculus c. proventriculus and villi d. typhlosoles and gastric ceca e. typhlosoles and villi
Approximately what percentage of the human genome is identical to that of a chimpanzee?
A) 50.0% B) 62.3% C) 92.0% D) 98.8%
Although statins result in decreases in total blood cholesterol and LDL cholesterol, FDA trials found no decreases in deaths due to cardiovascular disease, true of false?
a. true