During fermentation, what type of molecule is used to regenerate NAD+ from NADH?
a. an inorganic molecule
b. oxygen
c. an organic molecule
d. water
c. an organic molecule
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Molecules that absorb light are called
A. enzymes. B. electron carriers. C. pigments. D. photosynthesizers. E. absorbers.
Which group of organisms is able to regulate their internal temperature through a metabolic process?
a. Crocodilians b. Mammals c. Tuataras d. Lizards e. Turtles
If meiosis did not occur in sexually reproducing organisms, then:a
growth of the zygote would be halted. b. mitosis would be sufficient. c. gametes would remain haploid. d. chromosome number would double in each generation. e. eggs would be haploid, but sperm would be di
Fill in the blanks to complete the following statements. ?
___________ are tiny hair-like projections that help expel foreign particles from the respiratory tract.? Fill in the blank(s) with correct word