Copy of Friday (02/20) - Mechanisms of Evolution Quiz Review Academic (5/2/2026)

Last updated about 2 hours ago

20 Nsɛmmisa

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B.C.7E

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B.C.7D

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BIO.7.D

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Copy of Friday (02/20) - Mechanisms of Evolution Quiz Review Academic (5/2/2026)

Last updated about 2 hours ago

20 Nsɛmmisa

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Match the term to the correct description

Draggable item		Corresponding Item
Adaptation		Differences of traits within a population
Fitness		A beneficial trait that helps an organism survive and reproduce in a particular environment
Variation		Surviving long enough to produce offspring

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Which of the following best describes natural selection?

Only the largest and strongest organisms survive.

Random genes in a population always result in better characteristics in offspring.

Some organisms choose to live and some die in each generation.

The best adapted individuals survive and reproduce, contributing the most to the next

generation.

B.C.7E

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Arctic foxes grow thicker, white fur during the winter months to survive in cold environments. This adaptation is the result of —

Short-term environmental stress

Inherited good traits from parents to offspring

Behavioral changes learned over time

Random changes occurring only in adulthood

During the industrial revolution in England, factories produced black ash that covered the trucks and branches of the white aspen trees. At the same time, the number of white moths that lived on the trees decreased.
Based on the moth example above, which statement is true?

The black moths were adapted and most fit so they survive and reproduce

The birds stopped eating moths altogether and found another food source

All moths were unable to reproduce and eventually became extinct

The white moths were able to survive and reproduce better than the black moths

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Male peacocks living in areas with few predators have larger and more elaborate tail feathers than males living in regions with many predators who have shorter tail feathers. A population of peacocks from an area with a HIGH number of predators is relocated to a nearby habitat with very FEW predators.
Which of the following is most likely to occur over several generations?

Peacocks in an area with few predators will die over time

There will be an increase in the male peacocks with shorter tail feathers

All peacocks will lose their tail feathers due to the change in environment.

There will be an increase in the male peacocks with longer tail feathers

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Blue flying fish live in the upper layers of the ocean. Blue flying fish have enlarged pectoral fins that enable them to glide for 400 meters above the ocean surface and appear to fly.
Which statement best describes how natural selection led to enlarged pectoral fins in blue flying fish?

Fish were able to glide out of the ocean and into other bodies of water to mate with other species.

Fish were able to live both on land and in the water as a result of their larger pectoral fins.

Fish with enlarged pectoral fins were able to glide out of the ocean to escape predators, increasing their fitness.

Fish changed their DNA to express enlarged pectoral fins, changing the allele frequency of the population.

B.C.7D

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Hospitals use antibiotics to treat bacterial infections.
Some individual bacteria have a genetic mutation that allows them to survive exposure to the antibiotic. As a result, these resistant bacteria survive while the others die.
Which statement BEST explains how the presence of only a few resistant bacteria can cause the antibiotic to become ineffective over time?

The bacteria learn how to resist the antibiotic during their lifetime.

The antibiotic causes all bacteria to mutate and become resistant.

Resistant bacteria survive and reproduce, increasing the number of resistant bacteria in the population.

The antibiotic stops working because bacteria are no longer exposed to it.

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The graph below shows the average speed of rabbits. The data was collected between 1965 and 1967, after wolves were introduced back into the area.
What is the change in the phenotypic distribution?

An increase in food availability lead to the rabbit population increasing

The percentage of slower rabbits increased due to introduction of wolves

A decrease in fitness that increased reproductive success

The percentage of faster rabbits increased due to the introduction of wolves

The diagram below shows different beak shapes of finches. In the ancestral species of finches, beak size was much larger than in three living species of finches.
Which question would BEST help determine whether the change beak size and shape of these finches was influenced by natural selection?

Is the beak shape of male finches similar to that of female finches, and which bird has a longer body length?

What is the relationship between feather color and beak shape of finches?

How does the beak shape of finches change from generation to generation in response to food sources?

Did the ancestral finch have a larger wing span than living finches?

BIO.7.D

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The data table below shows the survival rates of three populations of finches over four generations.
Which beak has the highest fitness, and how do you know?

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The rainbow trout is a freshwater fish that lives in the rivers of Minnesota. A 5 pound trout is capable of laying up to 6,000 eggs at once.
Many of these embryos will be eaten by predators or will freeze in the arctic water before they can reach adulthood. Only 3% of the eggs will actually hatch and reach adulthood.
Why does the rainbow trout use energy to lay up to 6,000 eggs if most of them will not survive?

Producing more offspring increases the probability of developing beneficial mutations in the population

Producing more offspring increases the probability that some will survive and reproduce

Producing more offspring increases competition between other organisms who eat the same food

Producing more offspring increases the probability that they will evolve into a new species.

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The reproductive rates of mosquitoes are shown.
Based on the information provided, which statement BEST describes the effect of climate on the reproduction and activity of the mosquito** population?

Climate can affect how large and viable the egg becomes.

Climate can influence how successfully the organism reproduces.

Climate plays a role in determining the sex of the offspring

Climate can influence the availability of nutrients.

The image shows a population that is split by a river, leading to breeding isolation (reproductive isolation).
The populations are reproductively isolated and cannot produce viable offspring. Which process most likely explains this outcome?

Natural selection

Gene flow

Genetic Drift

Speciation

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Which scenario best describes gene flow?

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Why is gene flow important?

It eliminates harmful genes from these populations, making them better at surviving.

It forces the cells to rely on a single source of nutrients, which prevents other species from outcompeting them.

It creates identical copies of cells maintaining uniformity.

It increases genetic variation, which increases their ability to survive.

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A flash flood rushes through the Sam Houston State Forest and kills many members of a population of pigmy rattlesnakes. A limited amount of rattlesnakes from the original population survive.

null

The change in allele frequency after the flash flood is an example of .

Poison dart frogs are small amphibians that do not have physical defenses such as claws or sharp teeth. Many species produce toxic chemicals in their skin, and their bright colors serve as a warning to predators.
Based on this information, how has adaptation through natural selection allowed poison dart frogs to survive successfully without physical defenses?

The the toxic chemicals on their skin helps them find food in their environment.

The the toxic chemicals on their skin helps them blend in with their environment.

The the toxic chemicals keeps predators away which allows them to survive and reproduce.

The bright colors of the frog helps them attract mates.

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A group of lizards from a mainland have yellow and white phenotypes. A few individuals from the mainland get swept away to a nearby island in which they start a new colony.

null

The example described in the scenario above is than the original group from the mainland.

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Escherichia coli is a species of bacteria that normally reproduces asexually through binary fission. However, E. coli can also gain new genes by taking up plasmids from other bacteria in its environment. Some of these plasmids carry genes that provide resistance to toxic chemicals.
How does the ability to exchange DNA with other bacteria help Escherichia coli survive in changing environments?

It allows E. coli to change its DNA during its lifetime in response to stress, therefore increasing the population size.

It increases genetic variation, allowing some individuals to survive new environmental challenges.

It prevents mutations from occurring in the population, allowing some individuals to survive and reproduce

It stops natural selection from acting on the population, causing the population to go extinct.

A road is built through a field which separates a population of Texas tortoises.
What would provide evidence that speciation has occurred if the two populations were reintroduced after many generations?
Select two correct answers.

Tortoises in both environments are able to pass genetic information to their offspring.

Tortoises in Location Y only breed in the winter, while tortoises in Location Z only breed in the summer.

Tortoises in Location Y have larger shells and longer necks than tortoises in Location Z.

Tortoises from Location Y cannot produce fertile offspring with tortoises from Location Z .

Copy of Friday (02/20) - Mechanisms of Evolution Quiz Review Academic (5/2/2026)

Copy of Friday (02/20) - Mechanisms of Evolution Quiz Review Academic (5/2/2026)

Match the term to the correct description

Which of the following best describes natural selection?

Arctic foxes grow thicker, white fur during the winter months to survive in cold environments. This adaptation is the result of —

During the industrial revolution in England, factories produced black ash that covered the trucks and branches of the white aspen trees. At the same time, the number of white moths that lived on the trees decreased.Based on the moth example above, which statement is true?

Blue flying fish live in the upper layers of the ocean. Blue flying fish have enlarged pectoral fins that enable them to glide for 400 meters above the ocean surface and appear to fly.Which statement best describes how natural selection led to enlarged pectoral fins in blue flying fish?

The graph below shows the average speed of rabbits. The data was collected between 1965 and 1967, after wolves were introduced back into the area. What is the change in the phenotypic distribution?

The diagram below shows different beak shapes of finches. In the ancestral species of finches, beak size was much larger than in three living species of finches.Which question would BEST help determine whether the change beak size and shape of these finches was influenced by natural selection?

The data table below shows the survival rates of three populations of finches over four generations. Which beak has the highest fitness, and how do you know?

The reproductive rates of mosquitoes are shown.Based on the information provided, which statement **BEST describes the effect of climate on the reproduction and activity of the mosquito population?

The image shows a population that is split by a river, leading to breeding isolation (reproductive isolation).The populations are reproductively isolated and cannot produce viable offspring. Which process most likely explains this outcome?

Why is gene flow important?

A road is built through a field which separates a population of Texas tortoises.What would provide evidence that speciation has occurred if the two populations were reintroduced after many generations?Select two correct answers.

Match the term to the correct description

Which of the following best describes natural selection?

Arctic foxes grow thicker, white fur during the winter months to survive in cold environments. This adaptation is the result of —

During the industrial revolution in England, factories produced black ash that covered the trucks and branches of the white aspen trees. At the same time, the number of white moths that lived on the trees decreased.Based on the moth example above, which statement is true?

Blue flying fish live in the upper layers of the ocean. Blue flying fish have enlarged pectoral fins that enable them to glide for 400 meters above the ocean surface and appear to fly.Which statement best describes how natural selection led to enlarged pectoral fins in blue flying fish?

The graph below shows the average speed of rabbits. The data was collected between 1965 and 1967, after wolves were introduced back into the area. What is the change in the phenotypic distribution?

The diagram below shows different beak shapes of finches. In the ancestral species of finches, beak size was much larger than in three living species of finches.Which question would BEST help determine whether the change beak size and shape of these finches was influenced by natural selection?

The data table below shows the survival rates of three populations of finches over four generations. Which beak has the highest fitness, and how do you know?

The reproductive rates of mosquitoes are shown.Based on the information provided, which statement **BEST describes the effect of climate on the reproduction and activity of the mosquito population?

The image shows a population that is split by a river, leading to breeding isolation (reproductive isolation).The populations are reproductively isolated and cannot produce viable offspring. Which process most likely explains this outcome?

Why is gene flow important?

A road is built through a field which separates a population of Texas tortoises.What would provide evidence that speciation has occurred if the two populations were reintroduced after many generations?Select two correct answers.

During the industrial revolution in England, factories produced black ash that covered the trucks and branches of the white aspen trees. At the same time, the number of white moths that lived on the trees decreased.
Based on the moth example above, which statement is true?

Blue flying fish live in the upper layers of the ocean. Blue flying fish have enlarged pectoral fins that enable them to glide for 400 meters above the ocean surface and appear to fly.
Which statement best describes how natural selection led to enlarged pectoral fins in blue flying fish?

The graph below shows the average speed of rabbits. The data was collected between 1965 and 1967, after wolves were introduced back into the area.
What is the change in the phenotypic distribution?

The diagram below shows different beak shapes of finches. In the ancestral species of finches, beak size was much larger than in three living species of finches.
Which question would BEST help determine whether the change beak size and shape of these finches was influenced by natural selection?

The data table below shows the survival rates of three populations of finches over four generations.
Which beak has the highest fitness, and how do you know?

The reproductive rates of mosquitoes are shown.
Based on the information provided, which statement BEST describes the effect of climate on the reproduction and activity of the mosquito** population?

The image shows a population that is split by a river, leading to breeding isolation (reproductive isolation).
The populations are reproductively isolated and cannot produce viable offspring. Which process most likely explains this outcome?

A road is built through a field which separates a population of Texas tortoises.
What would provide evidence that speciation has occurred if the two populations were reintroduced after many generations?
Select two correct answers.

During the industrial revolution in England, factories produced black ash that covered the trucks and branches of the white aspen trees. At the same time, the number of white moths that lived on the trees decreased.
Based on the moth example above, which statement is true?

Blue flying fish live in the upper layers of the ocean. Blue flying fish have enlarged pectoral fins that enable them to glide for 400 meters above the ocean surface and appear to fly.
Which statement best describes how natural selection led to enlarged pectoral fins in blue flying fish?

The graph below shows the average speed of rabbits. The data was collected between 1965 and 1967, after wolves were introduced back into the area.
What is the change in the phenotypic distribution?

The diagram below shows different beak shapes of finches. In the ancestral species of finches, beak size was much larger than in three living species of finches.
Which question would BEST help determine whether the change beak size and shape of these finches was influenced by natural selection?

The data table below shows the survival rates of three populations of finches over four generations.
Which beak has the highest fitness, and how do you know?

The reproductive rates of mosquitoes are shown.
Based on the information provided, which statement BEST describes the effect of climate on the reproduction and activity of the mosquito** population?

The image shows a population that is split by a river, leading to breeding isolation (reproductive isolation).
The populations are reproductively isolated and cannot produce viable offspring. Which process most likely explains this outcome?

A road is built through a field which separates a population of Texas tortoises.
What would provide evidence that speciation has occurred if the two populations were reintroduced after many generations?
Select two correct answers.