Within an ecosystem, plants are known as producers or ____
a. heterotrophs
b. consumers
c. “other feeders”
d. decomposers
e. autotrophs
ANSWER: e
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Genes on different chromosomes ___________________ during meiosis. Genes that are very close together on the same chromosome are _________
A. do not assort independently; linked B. assort independently; linked C. do not assort independently; unrelated D. assort independently; unrelated
What are the thin plates in spongy bone?
Primarily because of its greater topographic complexity, eastern Asia exhibits a __________ turnover in compositional similarity of floras with distance, relative to North America.
A) greater B) similar C) lower
Consider a bean plant growing in a "Three Sisters" garden. The bean's stem twines up on corn plants, and its roots are shaded by squash plant leaves. The bean's roots have nodules with nitrogen-fixing bacteria, and a close association with mycorrhizal fungi in the soil. The bean flowers are pollinated by bees, and the seeds may be dispersed by rodents. Which species would be considered to comprise the bean's holobiont? Choose all that apply.
A. Bean B. Bee C. Corn D. Nitrogen-fixing bacteria E. Rodents F. Mycorrhizal fungi G. Squash