Answers24 - 25 CR - Biology B 0411KBLab: Natural Selection-Standard Bio 4.2

Evolutionary Relationships Answers

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Siblings have similar traits because they inherit those traits from a common ancestor. How is this similar to some evidence for evolution?

A
Similarities can be seen between siblings in species today, which shows common ancestry.
B
Similarities can be seen among related organisms, which shows common ancestry.
C
There are many differences between siblings in species today, which shows common ancestry.
D
There are many differences between related organisms, which shows common ancestry.
2
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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
3

Which of these statements best sums up evolution?

A
rapid change in species’ habits and features
B
rapid development of vestigial structures in a species
C
change in a population through new species being made
D
change in a population through genetic variation over time
4

Studying the anatomy of different organisms allows scientists to determine how different species have evolved over time. Which type of anatomic structure are bird wings and butterfly wings when compared to each other?

Question illustration
A
vestigial
B
homologous
C
analogous
D
heterologous
5

Australopithecus is an ape that lived in trees, but could walk on two feet. How might fossils from Australopithecus provide evidence for evolution?

A
Australopithecus is a fossil that is used to date other Precambrian fossils.
B
Australopithecus provides evidence of the existence of apes, but not humans.
C
Australopithecus is a transitional form between apes and humans.
D
Australopithecus provides evidence that humans existed.
6

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.
9

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.
10

Dogs have a reduced nonfunctional digit on their paws known as a dewclaw. What is this an example of?

A
analogous structure
B
homologous structure
C
vestigial structure
D
mutated structure

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