Variation among pre-cells was due to ________
A) genetic drift
B) natural selection
C) the bottleneck effect
D) mutation
D
You might also like to view...
Which latitude will have the most hours of daylight on the summer solstice?
a. 0º (the equator) b. 30º north c. 45º north d. 60º north
The layering of sedimentary deposits is called
a. stratification. b. saponification. c. fossilization. d. petrifaction. e. putrefaction.
Which of the following investigators was (were) responsible for the following discovery? In DNA from any species, the amount of adenine equals the amount of thymine, and the amount of guanine equals the amount of cytosine
A) Alfred Hershey and Martha Chase B) Oswald Avery, Maclyn McCarty, and Colin MacLeod C) Erwin Chargaff D) Matthew Meselson and Franklin Stahl
The process of phagocytosis involve all of the following EXCEPT
A) chemotaxis. B) secretion of cytotoxins. C) adhesion. D) elimination. E) vesicle fusion.