Which of the following are most susceptible to complement lysis?
A. Gram-positive bacteria
B. Gram-negative bacteria
C.
Bacteriophages
D.
Prions
B
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A duplicate copy of all of the hereditary information contained in the nucleus of eukaryotic cells is made during what stage of the cell cycle?
A. G1 B. S C. G2 D. Mitosis E. Cytokinesis
Mycorrhizae
a. benefit plant growth. b. are an example of mutualism. c. receives sugars from its plant partner. d. increase the surface area for absorption. e. are described by all of these
All mammals ________
A) give birth to live young B) are nocturnal C) have mammary glands D) are ectothermic
The skeleton nicknamed Lucy is a representative of which hominin?
a. Homo habilis b. Homo erectus c. Ardipithecus ramidus d. Australopithecus africanus e. Australopithecus afarensis