Which type of soil will supply nutrients to plants while its acidity leaches minerals from rock?
A. humus
B. sand
C. clay
D. loam
Answer: A
Biology & Microbiology
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Most gradient analyses support the individualistic view of communities proposed by ______
a. Clements b. Gleason c. Darwin d. Whitaker e. Connell
Biology & Microbiology
Chronically high blood pressure is called
a. ventricular fibrillation. b. hypertension. c. leukemia. d. sickle-cell anemia. e. a stroke.
Biology & Microbiology
Which of the following statements concerning leucine zipper proteins is FALSE?
a. They are transcription factors. b. They contain loops held together by zinc ions. c. They form homodimers. d. They form heterodimers. e. They contain DNA-binding domains.
Biology & Microbiology
Earth has supported life for approximately
A. 20 billion years. B. 3.8 - 3.7 billion years. C. 1.5 billion years. D. 700 - 800 million years.
Biology & Microbiology