AnswersBiology_B_IC_AltBiological Evidence and the Fossil Record

Factors Affecting Genetic Variation-Standard Bio 4.3 Answers

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1
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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.
2
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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
3

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
4

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Answer not available
5

A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What would her evidence have to show for her to be correct?

A
Strong genetic similarities in closely related organisms and weak genetic similarities in distantly related organisms.
B
Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.
C
Strong physical similarities among closely related organisms and also among distantly related organisms.
D
Weak physical similarities among closely related organisms and also among distantly related organisms.
6

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
7

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
8

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.
9

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
10

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
11

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
12

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
13

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
14

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.
15

What do gradualism and punctuated equilibrium have in common?

A
They are both explanations of the rate of evolutionary change.
B
They are both explanations that were put forth by Darwin.
C
They both discredit the theory of evolution.
D
They both utilize radioactive dating over relative dating.

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