Question 1

Most commercial pesticides are effective for only two or three years because:

Accepted Answer

A)  new pests invade the area.
B)  the chemicals induce mutations that provide immunity.
C)  the chemicals mutate and become ineffective.
D)  the pests learn to hide when the chemicals are being applied.
E)  those pests born with mutations that provide immunity will survive and reproduce.

Question 2

Which of the following statements about mutations is TRUE?

Accepted Answer

A)  Mutations have no effect on the survival and reproduction of an organism.
B)  Mutations are almost always better for the organism.
C)  Mutations almost always leave the organism worse off than before.
D)  Mutations are caused by natural selection.
E)  Mutations occur at random and are by chance.

Question 3

Convergent evolution occurs when:

Accepted Answer

A)  unrelated organisms develop analogous structures.
B)  two or more different species evolve to become one species.
C)  two or more populations merge into one.
D)  analogous structures evolve to be homologous.

Question 4

The figure indicates that:

Accepted Answer

A)  seed ferns evolved before trilobites.
B)  dinosaurs evolved before trilobites.
C)  trilobites evolved before seed ferns.
D)  trilobites, seed ferns, and dinosaurs evolved at the same time.
E)  trilobites ate seed ferns.

Question 5

Insects and bats both have wings. This proves they evolved from a common ancestor. True or False?

Accepted Answer

A) True 
 B)False

Question 6

Natural selection is BEST described as:

Accepted Answer

A)  the ability to generate new traits that better suit the species.
B)  increasing the perfection of a species.
C)  working on the existing variation of traits to favor those better suited to the organism's environment.
D)  causing the death of a significant proportion of the population.
E)  driving the species toward an eventual endpoint in which the species possesses the best possible adaptations for that particular environment.

Question 7

How does the fossil record support the theory of evolution?

Accepted Answer

In a geological formation, the youngest ...

Question 8

A bat's wing and a sheep's front leg are ________ structures.

Accepted Answer

The answer of A bat's wing and a sheep's front...

Question 9

Of all the possible amino acids, all living organisms make use of only the same 20 amino acids. This supports the idea that:

Accepted Answer

A)  only a limited number of DNA mutations are possible.
B)  bacteria, animals, and plants developed independently.
C)  each species uses a unique set of amino acids.
D)  plants and animals have a completely different ancestry.
E)  all living things are derived from a single common ancestor.

Question 10

What biochemical clues support the idea that all living things evolved from one common ancestor?

Accepted Answer

All cells identified to date u...

Question 11

If a woman learns to speak many languages, her children will inherit fluency in many languages. True or False?

Accepted Answer

A) True 
 B)False

Question 12

When unrelated organisms living under similar environmental demands evolve superficially similar structures, it is called:

Accepted Answer

A)  superficial selection.
B)  comparative anatomy.
C)  convergent evolution.
D)  coevolution.

Question 13

A population of grasshoppers in the Kansas prairie has two color types: green and brown. Typically, the prairie receives enough rainfall to maintain healthy, green grass. Assume a bird species that eats grasshoppers moves into the prairie. How will this affect the natural selection of the grasshoppers? How might this change in a drought year, when the grass turns brown?

Accepted Answer

The brown phenotype may be more easily d...

Question 14

A hospital uses a new cleaner to disinfect surfaces. Within a few years, many patients are developing infections from a bacterium that is resistant to the disinfectant. How does this happen?

Accepted Answer

All populations contain genetic variatio...

Question 15

Strong evidence for the common ancestry of all vertebrates is:

Accepted Answer

A)  they all have legs.
B)  their means of reproduction.
C)  the similarity of their embryological stages.
D)  they all evolved from fish.
E)  they all possess DNA.

Question 16

The fact that whales have pelvic and leg bones indicates that:

Accepted Answer

A)  they probably evolved from fish.
B)  ancestral whales had legs.
C)  whales should have functional legs.
D)  having a pelvis is advantageous.
E)  whales did not evolve by natural selection.

Question 17

Imagine that a population of deer living on an island without any predators was threatened with overpopulation, until wolves were imported. After a couple of years, there were fewer deer, but their average running speed and length of their legs had increased. What process accounts for the change?

Accepted Answer

A)  inheritance of acquired characteristics
B)  changes due to chance alone
C)  genetic impossibility
D)  unfavorable mutations
E)  natural selection

Question 18

The characteristics of a species remain unchanged from generation to generation. True or False?

Accepted Answer

A) True 
 B)False

Question 19

Some of Darwin's most important discoveries were based on studies of birds and tortoises he observed in:

Accepted Answer

A)  Tahiti.
B)  Jamaica.
C)  Ecuador.
D)  the Bahamas.
E)  the Galápagos Islands.

Question 20

Genetic variations in natural populations develop due to:

Accepted Answer

A)  random mutations of the DNA.
B)  changes in diet.
C)  changes in the environment.
D)  environmental catastrophies.
E)  individual activities.

Exam 14: Principles of Evolution

Genetic variations in natural populations develop due to:

Correct Answer
verified

Correct Answer
verified
The brown phenotype may be more easily d...
View Answer

If a woman learns to speak many languages, her children will inherit fluency in many languages. True or False?

Correct Answer
verified

Which of the following statements about mutations is TRUE?

Correct Answer
verified

Imagine that a population of deer living on an island without any predators was threatened with overpopulation, until wolves were imported. After a couple of years, there were fewer deer, but their average running speed and length of their legs had increased. What process accounts for the change?

Correct Answer
verified

What biochemical clues support the idea that all living things evolved from one common ancestor?

Correct Answer
verified
All cells identified to date u...
View Answer

Most commercial pesticides are effective for only two or three years because:

Correct Answer
verified

The fact that whales have pelvic and leg bones indicates that:

Correct Answer
verified

Natural selection is BEST described as:

Correct Answer
verified

A bat's wing and a sheep's front leg are ________ structures.

Correct Answer
verified

When unrelated organisms living under similar environmental demands evolve superficially similar structures, it is called:

Correct Answer
verified

Convergent evolution occurs when:

Correct Answer
verified

The characteristics of a species remain unchanged from generation to generation. True or False?

Correct Answer
verified

A hospital uses a new cleaner to disinfect surfaces. Within a few years, many patients are developing infections from a bacterium that is resistant to the disinfectant. How does this happen?

Correct Answer
verified
All populations contain genetic variatio...
View Answer

Strong evidence for the common ancestry of all vertebrates is:

Correct Answer
verified

Insects and bats both have wings. This proves they evolved from a common ancestor. True or False?

Correct Answer
verified

The figure indicates that:

Correct Answer
verified

How does the fossil record support the theory of evolution?

Correct Answer
verified
In a geological formation, the youngest ...
View Answer

Of all the possible amino acids, all living organisms make use of only the same 20 amino acids. This supports the idea that:

Correct Answer
verified

Some of Darwin's most important discoveries were based on studies of birds and tortoises he observed in:

Correct Answer
verified

Exam 14: Principles of Evolution

Genetic variations in natural populations develop due to:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedThe brown phenotype may be more easily d...View AnswerShow Answer

If a woman learns to speak many languages, her children will inherit fluency in many languages. True or False?

Correct AnswerverifiedShow Answer

Which of the following statements about mutations is TRUE?

Correct AnswerverifiedShow Answer

Imagine that a population of deer living on an island without any predators was threatened with overpopulation, until wolves were imported. After a couple of years, there were fewer deer, but their average running speed and length of their legs had increased. What process accounts for the change?

Correct AnswerverifiedShow Answer

What biochemical clues support the idea that all living things evolved from one common ancestor?

Correct AnswerverifiedAll cells identified to date u...View AnswerShow Answer

Most commercial pesticides are effective for only two or three years because:

Correct AnswerverifiedShow Answer

The fact that whales have pelvic and leg bones indicates that:

Correct AnswerverifiedShow Answer

Natural selection is BEST described as:

Correct AnswerverifiedShow Answer

A bat's wing and a sheep's front leg are ________ structures.

Correct AnswerverifiedShow Answer

When unrelated organisms living under similar environmental demands evolve superficially similar structures, it is called:

Correct AnswerverifiedShow Answer

Convergent evolution occurs when:

Correct AnswerverifiedShow Answer

The characteristics of a species remain unchanged from generation to generation. True or False?

Correct AnswerverifiedShow Answer

A hospital uses a new cleaner to disinfect surfaces. Within a few years, many patients are developing infections from a bacterium that is resistant to the disinfectant. How does this happen?

Correct AnswerverifiedAll populations contain genetic variatio...View AnswerShow Answer

Strong evidence for the common ancestry of all vertebrates is:

Correct AnswerverifiedShow Answer

Insects and bats both have wings. This proves they evolved from a common ancestor. True or False?

Correct AnswerverifiedShow Answer

The figure indicates that:

Correct AnswerverifiedShow Answer

How does the fossil record support the theory of evolution?

Correct AnswerverifiedIn a geological formation, the youngest ...View AnswerShow Answer

Of all the possible amino acids, all living organisms make use of only the same 20 amino acids. This supports the idea that:

Correct AnswerverifiedShow Answer

Some of Darwin's most important discoveries were based on studies of birds and tortoises he observed in:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
The brown phenotype may be more easily d...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
All cells identified to date u...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
All populations contain genetic variatio...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
In a geological formation, the youngest ...
View Answer

Correct Answer
verified

Correct Answer
verified