Where are the largest reserves of carbon on the planet?
A. soil and rocks
B. volcanoes and hot springs
C. plants, algae, and cyanobacteria
D. rocks and fossil fuels
E. the oceans
Answer: D
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In bryophytes:
A. the diploid gametophyte produces haploid spores by meiosis. B. the haploid gametophyte produces diploid spores by fertilization. C. the male gametes require water to reach the female gametes. D. the male gametes are dispersed by wind. E. the sporophyte produces spores by mitosis.
A polar body, once formed, has no further function and dies
a. True b. False Indicate whether the statement is true or false
Most of an apple fruit is derived from the
a. receptacle. b. ovary. c. ovule. d. endosperm. e. cotyledons
If you could travel in a time machine back to the Cambrian Explosion, which animals would you expect to see commonly? Check all that apply.
A. arthropods. B. birds. C. flatworms. D. sponges. E. reptiles.