Which of the following produce organic acids that may contribute to weathering of rocks?

A. arctic plants
B. mosses
C. aerial plants
D. water plants
E. lichens


Answer: E

Biology & Microbiology

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What happens next after insulin binds to a G-protein coupled receptor (GPCR)?

A. The G-protein loses GDP and gains GTP becoming activated. B. The G-protein loses GTP and gains GDP becoming inactivated. C. The G-protein loses GDP and gains GTP becoming inactivated. D. The insulin enters the cell through the GPCR and diffuses to the nucleus where it interacts with transcription factors. E. The G-protein loses GTP and gains GDP becoming activated.

Biology & Microbiology

When all the wavelengths of light are

combined, it becomes

a. white. b. black. c. invisible. d. all the colors of the rainbow. e. thicker.

Biology & Microbiology

Which group in the peacock butterfly experiment had the highest survival rates?

a. Those with more nocturnal habits b. Those without spots and without hissing/clicking sounds c. Those without spots but with hissing/clicking sounds d. Those with spots and hissing/clicking sounds e. Those with the same flower habitat as the birds

Biology & Microbiology

In summer squash, spherical-shaped fruit has been

shown to be dominant to elongated fruit. On one occasion two different spherical varieties were crossed and produced all disk-shaped fruits. When these hybrid disk-shaped fruits were crossed, they produced 75 disk-shaped fruits, 48 spherical fruits, and 9 elongated fruits. Explain these results. What will be an ideal response?

Biology & Microbiology