Which of the following are inborn errors of metabolism?
a. PKU and alkaptonuria
b. sickle cell anemia and hemophilia
c. cystic fibrosis and Tay-Sachs disease
d. Huntington's disease and fragile X syndrome
e. cri-du-chat syndrome and Down syndrome
A
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Overexploitation occurs as a result of ____
a. harvesting of predators b. transformation of an ecosystem to a desert c. soil nutrient loss
d. the combined outcome of desertification and global warming e. excessive harvesting of an animal or plant species
Unlike fish, lancelets as a adults do not have
a. a dorsal, hollow nerve cord. b. gill slits. c. a brain. d. a tail extending beyond the anus. e. more than one of these.
Which Archaea have the ability to carry out a form of the Calvin cycle, capturing sunlight with bacteriorhodopsin?
a. extreme thermophiles b. extreme halophiles c. Nanoarchaeota d. Korarchaeota e. Euryarchaeota
The first documented human disease to be eradicated was smallpox
Indicate whether the statement is true or false