The cow Bos primigenius (which is bred for meat and milk) has a smaller brain and larger eyes than closely related wild species of ungulates. These traits most likely arose by _____
A) natural selection, because these traits evolved in the population over time
B) natural selection, because these traits were not consciously selected by humans
C) artificial selection, because changes in these traits co-occurred with human selection for high milk output and high muscle content
D) artificial selection, because these animals differ from their close relatives and common ancestor
C
You might also like to view...
Antibodies are found in
A) milk. B) mucosal secretions. C) serum. D) milk, mucosal secretions, and serum.
Typically, where would we expect to find older
fossils?
a. superficial layer of the Earth b. deep layer of the Earth c. both layers will have old fossils d. neither layer will have old fossils e. none of these
How many weeks does prenatal development last in humans?
a. 31 b. 38 c. 40 d. 45 e. 52
Genetic testing has revealed that mating between Homo sapiens and Homo neanderthalensis likely took place in ____.
A. France B. China C. Papua New Guinea D. England E. the Middle East