Whose findings of evolution by natural selection were presented with those of Darwin?
a. Alfred Wallace
b. Carolus Linnaeus
c. Charles Lyell
d. Gregor Mendel
e. Thomas Malthus
A
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Most chromosomes are paired and are both inherited from either the mother or the father
A. true B. false
How old was the world thought to be when Darwin began his voyage? How old is it thought to be
now? What will be an ideal response?
________ are small pieces of DNA separate from the bacterial chromosome
Fill in the blank(s) with correct word
Which statement best describes the reproductive isolation between populations of Rhagoletis flies, one of which is found on apple trees and the other that is found on hawthorn trees?
A) Hybrid offspring of the two populations are sterile. B) Hawthorn trees and apple trees grow in different areas, so the two populations do not encounter each other. C) Male flies of one population cannot physically mate with females from the other population. D) Apple-liking males are more likely to encounter apple-liking females than hawthorn-liking females. E) Eggs laid by female flies mated with a male from the "wrong" population do not develop.