Which species of Homo is most closely related to the Australopithecines?
A. habilis
B. ergaster
C. erectus
D. sapiens
Answer: A
Biology & Microbiology
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After an F+ × F- mating, the donor is ________ and the recipient is ________.
A. F+; F- B. F-; F- C. F+; F+ D. F-; F+
Biology & Microbiology
The major part of the angiosperm life cycle is the:
a. diploid gametophyte b. diploid sporophyte c. haploid gametophyte d. haploid sporophyte e. fertilization step
Biology & Microbiology
The atomic number of an element is the number of
A. protons in the orbitals. B. electrons in the nucleus. C. neutrons in the orbitals. D. protons in the nucleus. E. neutrons in the nucleus.
Biology & Microbiology
Antidiuretic hormone (ADH) decreases the amount of water absorbed by the kidneys and increases the volume of urine output.
a. true b. false
Biology & Microbiology