In his voyage around the world in the Beagle,
what observation did Darwin make about
animals?
a. animals in similar climate zones were
similar regardless of where they lived
b. animals isolated on islands were unlike any
living on nearby mainlands
c. animals living closer together appeared
more closely related to each other than
animals living further away
d. fossils of animals he found were unlike any
animals still living
e. there appeared to be no genetic connections
between any of the animals he observed
C
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Harmful mutations are always quickly weeded out of a population
A. true B. false
Which of the following is NOT an advantage of asexual reproduction?
a. In stable environments, the offspring are as well adapted as the parents. b. Individual organisms do not have to seek mates. c. It is less energetically costly than sexual reproduction. d. It promotes genetic diversity. e. It is faster than sexual reproduction.
An independent individual that possesses the characteristics of life is called a(n)
a. cell. b. organism. c. organ. d. tissue. e. atom.
What causes the existence of superficial differences among groups of humans?
A) temporal isolation B) geographic isolation C) genetic incompatibility D) behavioral isolation