Question 1
A) Whale fins and bat wings are anatomically similar. Which of the following does this suggest
about the animals? (1 point)
Whales and bats move in the same way
Whales and bats were once adapted to the same environment
Whales and bats have a common ancestry
Whales and bats have existed for the same amount of time
Question 2
A)
In many cases throughout geologic history, if
mutations in the genetic materials of existing
species had not occurred, new species
would not have appeared.
Which of the following conclusions about mutations in the DNA sequence of a gene is most
consistent with the statement in the box above?
(1 point)
Mutations are always rapidly occurring.
Mutations are an important mechanism for the evolution of new species.
Mutations are the only way new species arise.
Mutations are always beneficial.
Question 3
A) Individual species with which of the following characteristics would be most likely to survive,
according to Darwin? (1 point)
the smallest number of offspring
characteristics their parents acquired by use and disuse
undergone mutations
variations best suited to the environment
1 2 3
Question 1
C) Whales and bats have a common ancestry
Question 2
B) Mutations are an important mechanism for the evolution of new species.
Question 3
D) Variations best suited to the environment