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Match the term to the correct definition:

Draggable item		Corresponding Item
Fitness		Differences among each individual within a population
Natural Selection		The ability to survive, reproduce, and pass down genes
Variation		The mechanism of evolution where the best adapted individuals survive and reproduce, contributing the most to the next generation (also known as "survival of the fittest")

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1

Enter your answer in the box:

A heritable trait that increases an organism’s ability to survive and reproduce in its specific environment is called an .

B.C.7E

1

Male guppies found in areas without predators are more colorful than the ones found in locations with large predator populations. A population of adult guppies originating (coming from) from an area with a large number of predators is transferred (moved) to a nearby area with few predators.
Which of these is most likely to happen over a few generations?

The mortality rate (death rate) of the guppies will increase.

There will be an increase in mutations in the offspring.

There will be an increase in the number of colorful guppies.

B.C.7C

Ɛhia

1

Farmers spray pesticides (poison) on their plants to protect the plants from being eaten by insects.
Some individual insects have a genetic mutation that makes them resistant to the poison in the pesticides. This means that the resistant insects survive while the others die.
Which statement best describes how only a few resistant individuals resulted in the pesticide becoming ineffective (stopped it from working).

The resistant insects eat the poisonous plants and leave the rest of the plants for the others

The resistant insects are able to survive to reproduce and create a population that is also resistant

The resistant insects grow larger and eat less of the plants

B.C.7E

Ɛhia

1

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area.
Which factor BEST describes the change in this population of giraffes?

An increase in food availability

A decrease in fitness that increased reproductive success

A change in the phenotypic(how they look) distribution in response to an environmental factor

Ɛhia

1

The table shows the survival rate of two types of rabbits in the same environment over a period of four years.

Which statement about the rabbits in this environment is best supported by the data?

Brown rabbits have a shorter life cycle than white rabbits have.

White rabbits are more fit for the environment than brown rabbits are.

Brown rabbits are more fit for the environment than white rabbits are.

B.C.7E

Ɛhia

1

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood.
One benefit of the giant octopus laying many eggs is to __________________________.

decrease competition between different octopus species to maintain resources in the population

decrease the likelihood of offspring being consumed (eaten) by predators

increase the chance that more individuals will survive to maintain the population

B.C.7E

Ɛhia

1

Green anoles are lizards that can change their skin color rapidly in response to various stimuli. This adaptation is the result of --

selective breeding of lizards by humans.

beneficial traits passed from parents to offspring.

geographical isolation that prevented genetic mutation.

B.C.7E

Ɛhia

1

During the Industrial Revolution in England, burning coal increased the soot level in the air, and the soot darkened the tree bark. As a result, the population of dark-colored peppered moths significantly increased.
Which statement describes the MOST LIKELY reason why the population of dark-colored peppered moths increased?

Light-colored peppered moths were better adapted than dark-colored peppered moths.

Light-colored peppered moths migrated to areas with less pollution.

Dark-colored peppered moths had a genetic variation that provided better coverage from predators in their changing environment.

Ɛhia

1

Staphylococcus aureus is a species of bacteria that is highly resistant to antibiotic drugs. While these bacteria typically replicate asexually through a process known as binary fission, they can also acquire new genes by incorporating plasmids (circular segments of DNA) from other bacteria in their environment. Certain bacteria contain plasmids that carry genes that provide resistance to antibiotics.
How does the ability to exchange DNA with other bacteria help Staphylococcus aureus survive in changing environments?

It increases genetic diversity, which increases their ability to survive in changing conditions.

It eliminates harmful genes from bacterial populations, making them harder to detect from antibiotics.

It creates identical copies of the bacteria, maintaining uniformity and ensuring no mutations form.

Ɛhia

1

As part of a wildlife conservation program, researches take a small population of wolves and relocate them to an island. After several generations, researchers analyze the genomes of the wolves in the population and determine that there is little genetic variation in the population.
Which evolutionary mechanism BEST explains the low level of genetic variation of these wolves?

Gene flow

Founder effect

Mutation

In Willowbend Grove, 50% of the rabbits are black and 50% are white. A fire starts and kills almost all of the rabbits. In the surviving population, 90% of the rabbits are black and 10% are white.

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2

The change in allele frequencies after the fire is an example of

Ɛhia

2

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Genetic Drift

Mutations

Gene Flow

Genetic Recombination

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1

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.
Which of these is a likely outcome of movement by young males?

Gene flow occurs between populations

Relative genotypic frequencies reach a constant state

Allele frequencies suddenly change

B.C.7F

MOD 2025 Natural Selection Quiz

MOD 2025 Natural Selection Quiz

Match the term to the correct definition:

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area.
Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years.

Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood.
One benefit of the giant octopus laying many eggs is to __________________________.

Green anoles are lizards that can change their skin color rapidly in response to various stimuli. This adaptation is the result of --

In Willowbend Grove, 50% of the rabbits are black and 50% are white. A fire starts and kills almost all of the rabbits. In the surviving population, 90% of the rabbits are black and 10% are white.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.
Which of these is a likely outcome of movement by young males?

Match the term to the correct definition:

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area.
Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years.

Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood.
One benefit of the giant octopus laying many eggs is to __________________________.

Green anoles are lizards that can change their skin color rapidly in response to various stimuli. This adaptation is the result of --

In Willowbend Grove, 50% of the rabbits are black and 50% are white. A fire starts and kills almost all of the rabbits. In the surviving population, 90% of the rabbits are black and 10% are white.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.
Which of these is a likely outcome of movement by young males?

MOD 2025 Natural Selection Quiz

MOD 2025 Natural Selection Quiz

Match the term to the correct definition:

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area. Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years. Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood. One benefit of the giant octopus laying many eggs is to __________________________.

Green anoles are lizards that can change their skin color rapidly in response to various stimuli. This adaptation is the result of --

In Willowbend Grove, 50% of the rabbits are black and 50% are white. A fire starts and kills almost all of the rabbits. In the surviving population, 90% of the rabbits are black and 10% are white.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.Which of these is a likely outcome of movement by young males?

Match the term to the correct definition:

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area. Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years. Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood. One benefit of the giant octopus laying many eggs is to __________________________.

Green anoles are lizards that can change their skin color rapidly in response to various stimuli. This adaptation is the result of --

In Willowbend Grove, 50% of the rabbits are black and 50% are white. A fire starts and kills almost all of the rabbits. In the surviving population, 90% of the rabbits are black and 10% are white.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.Which of these is a likely outcome of movement by young males?

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area.
Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years.

Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood.
One benefit of the giant octopus laying many eggs is to __________________________.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.
Which of these is a likely outcome of movement by young males?

The bar graph shows the average neck length in a population of giraffes. The data were collected in 1980 and 1983, after a wildfire occurred in 1982 in the area.
Which factor BEST describes the change in this population of giraffes?

The table shows the survival rate of two types of rabbits in the same environment over a period of four years.

Which statement about the rabbits in this environment is best supported by the data?

The giant octopus lays 20,000 to 100,000 eggs. After hatching, most octopuses become prey to larger marine organisms, and less than 5% will reach adulthood.
One benefit of the giant octopus laying many eggs is to __________________________.

Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.

Common baboons live on the same savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop.
Which of these is a likely outcome of movement by young males?