because an spermatogonia has 23 pairs of chromosomes, after the 2 divisions of meiosis the chromosome number is reduced to 11.5 in each sperm and therefore it takes 2 sperm to fertilize 1 egg
a. true
b. false
Answer: b. false
Biology & Microbiology
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The scientific name for the ruffed grouse is Bonasa umbellus. Bonasa is
(a) the family name. (b) the genus. (c) the specific epithet. (d) all of the above.
Biology & Microbiology
Which of the following terms does NOT belong with the other four?
a. Radiolaria b. Chlorarachniophyta c. Foraminifera d. Charophyta e. Rhizaria
Biology & Microbiology
Sterilization is achieved by
A. hot water. B. flash pasteurization. C. boiling water. D. steam autoclave. E. All of the choices are correct.
Biology & Microbiology
A cline is:
a. a temporal gradient in the frequency of genotypes and phenotypes. b. a spatial gradient in the frequency of genotypes and phenotypes. c. an area of resource competition. d. an area of assortative mating.
Biology & Microbiology