AnswersFall 24 GSE Biology B-ICLab: Natural Selection-Standard Bio 4.2

Biological Evidence and the Fossil Record Answers

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What is the most likely reason that horses and mountain goats have hooves?

A
They have homologous structures because they have a common ancestor.
B
They have analogous structures because they have a common ancestor.
C
These are vestigial structures in both animals because they are not used.
D
These are similar structures due genetic mutations.
23

Whales have what seem like remnants of a pelvis and femur, as shown here.What are these structures an example of?

Question illustration
A
transitional structures
B
analogous structures
C
vestigial structures
D
adapted structures
24

Wisdom teeth are the third and final set of human molars that come in during the late teens or early twenties. In some cases, these teeth come in without problems, but they often have to be removed due to misalignment in the jaw, as shown below. Removal of the teeth does not cause any long-term complications in regard to eating.Which type of anatomic structure are wisdom teeth?

Question illustration
A
vestigial
B
homologous
C
analogous
D
heterologous
25

What is the value of a transitional fossil?

A
Transitional forms show the evolutionary steps between species.
B
Transitional forms are analogous fossils.
C
Transitional forms discredit the theory of evolution.
D
Transitional forms are proof of punctuated equilibrium in evolution.

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