Biology 1407 exam test queries and
answers graded A+
What theory was Darwin the first to propose? - ANS✅✅Natural selection is the mechanism or
evolution
Which of the following MUST exist in a population before natural selection can act upon that
population? - ANS✅✅Genetic variation
The role that humans play in artificial selection is to _____ - ANS✅✅Choose which organisms
reproduce
Of the following anatomical structures, which is homologous to the bones in the wing of a bird? -
ANS✅✅Bones in the flipper of the whale
What must be true of any organ described as vestigial? - ANS✅✅It must be homologues to some
feature in an ancestor
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same
bones, which develop from similar embryonic tissues. These structural similarities are an example of
_____. - ANS✅✅Homology due to divergent evolution
Which of the following evidence most strongly supports the common origin of all life on Earth? All
organisms _____ - ANS✅✅They all essentially use the same genetic code
Three populations of crickets look very similar, but the males have courtship songs that sound
different. What function would this difference in song likely serve if the populations came in
contact? - ANS✅✅A behavioral reproductive isolating mechanism
Where is the pelagic realm? - ANS✅✅the Sea
The production of sterile mules by interbreeding between female horses (mares) and male donkeys
(jacks) is an example of ___________ - ANS✅✅Reduced hybrid fertility
answers graded A+
What theory was Darwin the first to propose? - ANS✅✅Natural selection is the mechanism or
evolution
Which of the following MUST exist in a population before natural selection can act upon that
population? - ANS✅✅Genetic variation
The role that humans play in artificial selection is to _____ - ANS✅✅Choose which organisms
reproduce
Of the following anatomical structures, which is homologous to the bones in the wing of a bird? -
ANS✅✅Bones in the flipper of the whale
What must be true of any organ described as vestigial? - ANS✅✅It must be homologues to some
feature in an ancestor
Structures as different as human arms, bat wings, and dolphin flippers contain many of the same
bones, which develop from similar embryonic tissues. These structural similarities are an example of
_____. - ANS✅✅Homology due to divergent evolution
Which of the following evidence most strongly supports the common origin of all life on Earth? All
organisms _____ - ANS✅✅They all essentially use the same genetic code
Three populations of crickets look very similar, but the males have courtship songs that sound
different. What function would this difference in song likely serve if the populations came in
contact? - ANS✅✅A behavioral reproductive isolating mechanism
Where is the pelagic realm? - ANS✅✅the Sea
The production of sterile mules by interbreeding between female horses (mares) and male donkeys
(jacks) is an example of ___________ - ANS✅✅Reduced hybrid fertility
