atmosphere
What will be an ideal response?
.03%carbon, 78%nitrogen, 21%oxygen, argon .9%
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Which of the following emergence factors has contributed to the HIV/AIDS epidemic?
A) climate change B) rapid pathogen adaptation and change C) increasing travel to endemic areas D) exotic pet and meat trade
The breaking up of large units of fat into smaller ones is called
a. digestion. b. saponification. c. neutralization. d. emulsification. e. denaturation.
Careful, long-term studies conducted by Steve Hubbell and colleagues __________ for the proposal that spatial and temporal variation in gap formation caused by disturbance explains high diversity of tropical trees.
A) provide support B) fail to provide support
Metal ions are useful to organisms in the ________ form.
A. soluble B. reduced C. insoluble D. oxidized E. oxidized and insoluble