Each year, plants and algae remove approximately _______ of the CO2 in the atmosphere.
A. half
B. 100%
C. 1/7th
D. 50%
E. 1/50th
C. 1/7th
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Fungi that absorb nutrients from decaying plant matter are called _____
A) saprobes B) mycorrhizae C) mushrooms D) yeasts E) molds
Which is true of interneurons?
a. They detect stimuli. b. They receive and send signals. c. They control muscles. d. They control glands. e. They have a long axon.
Regarding syphilis, which one of the following is most accurate?
A. The characteristic lesion of primary syphilis is a painful vesicle on the genitals B. In secondary syphilis, the number of organisms is low, so the chance of transmitting the disease to others is low C. In secondary syphilis, both the rapid plasma reagin (RPR) and the fluorescent treponemal antibody-absorbed (FTA-ABS) tests are usually positive D. The antibody titer in the FTA-ABS test typically declines when the patient has been treated adequately E. In congenital syphilis, no antibody is formed against T. pallidum because the fetus is tolerant to the organism
Why is glycolysis believed to have evolved early in the history of life?
A. It splits a 6-carbon molecule into two 3-carbon molecules. B. It is present in most every type of cell. C. It does not require oxygen. D. It breaks down sugar. E. It produces energy.