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

Evolutionary Relationships Answers

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1
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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.
2
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Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine common ancestry?

A
fossils
B
analogous structures
C
homologous structures
D
molecular clock
3

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
4

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
5

Biology shows us the fossil record and comparative anatomies. Chemistry shows us that organic molecules can come from inorganic matter. Geology shows us that organisms that used to live together are found on separate continents due to continental drift. Which fields of science provide evidence for evolution?

A
biology only
B
biology and chemistry only
C
biology and geology only
D
biology, chemistry, and geology
6

Marsupials are found in North America and Australia, but they would not have been able to swim across the ocean. According to scientists, how did this group of organisms come to live on two separate continents?

A
Marsupials used to have adaptations that allowed them to swim but lost these adaptations over time.
B
The two groups of marsupials evolved independently of one another on two separate continents.
C
The continents were once connected, and marsupials were able to migrate over the land.
D
The oceans were shallow in prehistoric times, which allowed the marsupials to travel from one continent to another.
7

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.
8

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
9

What do scientists need to look at before developing an argument?

A
The validity of data, claims, hypotheses, and observations.
B
Their opinion and personal views.
C
The arguments of famous people on the topic.
D
The arguments that make the most sense for society.
10

Which structures are similar in function, but do not indicate that the organisms are related?

A
analogous structures
B
homologous structures
C
vestigial structures
D
transitional structures

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Evolutionary Relationships Answers — 24 - 25 CR…