A ________ cycle is a cyclic path that involves both biological and chemical processes of an ecosystem.
A. hydrological
B. biogeochemical
C. complete
D. complementary
Answer: B
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The reproductive system is the only system that contributes to homeostasis
1.True 2.False
Which of the following groups is most closely related to the tracheophytes?
A. Bryophytes B. Charophytes C. Rhodophytes D. Chlorophytes
There are very few viruses in aquatic environments.
Answer the following statement true (T) or false (F)
If a trait is inherited in an autosomal recessive fashion, which of the following is not true?
A. Both sexes are equally affected. B. The trait will not occur in offspring if one of the parents is homozygous dominant. C. About one-fourth of the offspring of two heterozygotes will be affected. D. The trait often appears in the progeny of unaffected parents. E. Two affected individuals can have an unaffected child.