Daylight in the Southern Hemisphere is longest during the winter solstice in December
Indicate whether the statement is true or false
TRUE
Biology & Microbiology
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Genetic drift is non-selective and therefore does not contribute to microevolution
a. True b. False
Biology & Microbiology
Antibodies from the male that coat the sperm may impair fertility by
A) preventing sperm binding to oocytes. B) stretching out the acrosome until the sperm cell bursts. C) causing point mutations in the male genome. D) inducing an autoimmune reaction in the female.
Biology & Microbiology
Which blood type is the universal donor?
1.A+ 2.B 3.AB+ 4.AB 5.O
Biology & Microbiology
Allergy is a ____ response to ____ antigens
a. hypersensitive; environmental b. hyposensitive; cellular c. normal level; microbial d. mixed; protein e. mixed; microbial
Biology & Microbiology