Scientists find that most feral cats in a neighborhood have whiskers about 12 cm long. After about 15 generations of stabilizing selection, what would you expect to see?

even more cats with 12 cm long whiskers

most cats with less than 12 cm long whiskers

most cats with more than 12 cm long whiskers

most cats with whiskers either less than or more than 12 cm long, very few with whiskers 12 cms

Why did the population of peppered moths in England change from light to dark after the Industrial Revolution produced a lot of pollution?

Light moths were easy to see against sooty trees and were eaten

Light moths were killed by soot

The birds that ate the dark moths were killed by soot

Dark moths were produced by industrial processes

Why is the mouse population changing over time?

The hawks eat more light mice than dark mice because they can see the light mice more easily

The light mice can reproduce more successfully than the dark mice

The hawks eat more dark mice than light mice because the dark mice taste better

The hawks eat more dark mice than light mice because they can see the dark mice more easily

Mutations are important because they bring about

genetic variation needed for a population to evolve

death of the organism in which they develop

benefits for the individual, not for the population

Hardey-Weinberg equilibrium within a population

Which statement correctly explains how resistance to penicillin appeared after a few years of its widespread use to fight bacterial infection?

some bacteria were resistant to penicillin and their population spread rapidly, without competition from bacteria that were killed by penicillin

in order to survive exposure to penicillin, bacteria developed a resistance to the drug

a few bacteria became resistant to penicillin, and through sexual reproduction , most bacteria acquired the resistance

penicillin never really successfully wiped out populations of bacteria, scientist did not use proper controls in their studies

Two organisms that are closely related would have

completely different DNA sequence

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

Green beetles are more fit for their environment than brown beetles

Brown beetles have a shorter life cycle than green beetles have

brown beetles are undergo more unfavorable mutations than green beetles

A graph regarding the effect of agricultural bioengineering on insect pests is shown below How has natural selection affected species of insect pests?

A. Natural selection has rapidly increased the number of species that are resistant to pesticides

A. Natural selection has not affected the number of species that are resistant to pesticides

A. Natural selection has only affected the number of species that are resistant to pesticides

The green frog (Lithobates clamitans clamitans) is found in many parts of the United States. The table contains some information about this frog. Why does the ability to lay 1,000 to 5,000 eggs increase the fitness of the species L. clamitans clamitans?

A. It increases the probability that some offspring will survive long enough to reproduce.

It increases the chance of the recombination of alleles, leading to genetic drift in the population.

A. It increases opportunities for offspring to compete for limited resources.

A prey population consists of individuals with a variety of running speeds. The adaptation that allows some of these animals to run fast would be an example of natural selection if it helps them —

reproduce and increase the frequency of their genes in the population

survive and undergo mutations in their DNA

produce offspring that run at average speeds

lower the mortality rates of the population

Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is _____.

a few thousand years old, and populations are unchanging

a few thousand years old, and populations gradually change

millions of years old, and populations rapidly change

millions of years old, and populations are unchanging

Starting from the wild mustard Brassica oleracea , breeders have created the strains known as Brussels sprouts, broccoli, kale, and cabbage. Therefore, which of the following statements is correct?

In this wild mustard, there is enough heritable variation to permit these different varieties

Heritable variation is low in wild mustard—otherwise this wild strain would have different characteristics

Natural selection is rare in wild populations of wild mustard.

In wild mustard, most of the variation is due to differences in soil or other aspects of the environment.

A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these explanations best explains what happened?

Triazine-resistant weeds were more likely to survive and reproduce.

The herbicide company lost its triazine formula and started selling poor-quality triazine

Natural selection caused the pigweed to mutate, creating a new triazine-resistant species.

Triazine-resistant pigweed has less-efficient photosynthesis metabolism.

After the drought of 1977, researchers hypothesized that on the Galápagos island Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could more easily crack and eat the tough Tribulus cistoides fruits. A tourist company sets up reliable feeding stations with a variety of bird seeds (different types and sizes) so that tourists can get a better look at the finches. Which of these events is now most likely to occur to finch beaks on this island?

increased variation in beak size and shape over time

evolution of yet larger, deeper beaks over time, until all birds have relatively large, deep beaks

evolution of smaller, pointier beaks over time, until all birds have relatively small, pointy beaks

no change in beak size and shape over time

Which of the following represents an idea that Darwin learned from the writings of Thomas Malthus?

Populations tend to increase at a faster rate than their food supply normally allows

Technological innovation in agricultural practices will permit exponential growth of the human population into the foreseeable future.

Earth changed over the years through a series of catastrophic upheavals.

The environment is responsible for natural selection.

A biologist studied a population of squirrels for fifteen years. During that time, the population was never fewer than thirty squirrels and never more than forty-five. Her data showed that over half of the squirrels born did not survive to reproduce, because of both competition for food and predation. In a single generation, 90% of the squirrels that were born lived to reproduce, and the population increased to eighty. Which inference(s) about this most recent surge in the population size might be true?

The amount of available food may have increased and/or the predators that prey upon squirrels may have decreased

The amount of available food may have increased

The parental generation of squirrels developed better eyesight due to improved diet; the subsequent squirrel generation inherited better eyesight.

The number of predators that prey upon squirrels may have decreased.

The role that humans play in artificial selection is to _____.

choose which organisms reproduce

determine who lives and who dies

perform artificial insemination

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely to result in the algae-eater population in future generations?

selection for larger female algae-eaters, bearing broods composed of more, and larger, young

selection for drab coloration of the algae-eaters

selection for nocturnal algae-eaters (active only at night)

selection for algae-eaters that become sexually mature at smaller overall body sizes

Fossils of Thrinaxodon , a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that _____.

mammals evolved from a reptilian ancestor

fossils found in a given area look like the modern species in that same area

the environment where it lived was very warm

Antarctica and South Africa separated after Thrinaxodon went extinct

If the bacterium Staphylococcus aureus experiences a cost for maintaining one or more antibiotic-resistance genes, what would happen in environments that lack antibiotics?

These bacteria would be out-competed and replaced by bacteria that have lost these genes.

These genes would be maintained in case the antibiotics appear

These bacteria would try to make the cost worthwhile by locating and migrating to microenvironments where traces of antibiotics are present.

The number of genes conveying antibiotic resistance would increase in these bacteria

Of the following anatomical structures, which is homologous to the bones in the wing of a bird?

bones in the flipper of a whale

bones in the hind limb of a kangaroo

chitinous struts in the wing of a butterfly

bony rays in the tail fin of a flying fish

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

Under particular circumstances that persisted for long periods, each of these structures presented greater costs than benefits

Natural selection cannot account for losses, but accounts only for new structures and functions

Natural selection accounts for these losses by the principle of use and disuse

The ancestors of these organisms experienced harmful mutations that forced them to lose these structures.

Given what we know about evolutionary biology, we expect to find the largest number of endemic species in which of the following geological features, which have existed for at least a few million years?

an isolated ocean island in the tropics

a grassland in the center of a large continent, with extreme climatic conditions

a shallow estuary on a warm-water coast

Which species is most closely related to species W?

V is most closely related to species W

X is most closely related to species W.

Y and Z are equally closely related to W

It is not possible to say from this tree

Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant ( A1 ) and recessive ( A2 ) alleles according to the Hardy-Weinberg model?

f( A1 ) = 0.9700, f( A2 ) = 0.0300

f( A1 ) = 0.9997, f( A2 ) = 0.0003

f( A1 ) = 0.9800, f( A2 ) = 0.0200

f( A1 ) = 0.9604, f( A2 ) = 0.0392

Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testosterone causing growth of the larynx. If the fossil records of apes and humans alike show a trend toward decreasing larynx size in adult females and increasing larynx size in adult males, then _____.

sexual dimorphism was evolving over time in these species

intrasexual selection seems to have occurred in both species

stabilizing selection was occurring in these species concerning larynx size

selection was acting more directly upon genotype than upon phenotype

AP Bio Natural Selection

Authored by Rachel Stoddard

Biology

10th - 12th Grade

NGSS covered

Used 117+ times

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

Content View

Student View

43 questions

Show all answers

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

a bird that can easily outcompete other birds for food and that can produce many eggs has a high

sexuality

mutation rate

fitness

adaptability

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is a true statement about natural selection?

it is goal directed

individuals evolve

variation exists in a population

acquired characteristics

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The small seeded plants in an area were killed by a fungus. Finches with a small beak cannot crack open the large seeds from the plants that were left. What type of selection is likely to occur?

directional selection

stabilizing selection

disruptive selection

artificial selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A fire has wiped out the vegetation that produces medium sized seeds. As a result, the finches left can feed on seed that are available in two sizes: small and large. What type of selection is likely to take place in this population?

directional selection

disruptive selection

stabilizing selection

artificial selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

NGSS.HS-LS4-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In Canada, the people have overfished the salmon in a particular river. They catch the larger salmon and throw the smaller salmon back into the river. Over time, what type of selection is likely to take place?

directional selection

disruptive selection

stabilizing selection

artificial selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

NGSS.HS-LS4-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In a forest in Germany, there is a rat who has three fur coat colors: a light creamy color, a medium tan color, and a dark brown color. In this particular forest, the floor is a medium brown and the intermediate tan color mouse is better camouflaged.

directional selection

disruptive selection

stabilizing selection

artificial selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of selection is depicted in the picture?

stabilizing

directional

disruptive

the answer is not here

Tags

NGSS.HS-LS4-4

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

54 questions

Analyzing Line Graphs & Tables

Quiz

•

4th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

Discover more resources for Biology

21 questions

Meiosis Vs Mitosis

Quiz

•

10th Grade

10 questions

Comparing Mitosis and Meiosis: Key Differences and Stages

Interactive video

•

6th - 10th Grade

20 questions

Cladogram Practice

Quiz

•

10th Grade

10 questions

Cell Structure and Function Concepts

Interactive video

•

6th - 10th Grade

20 questions

Evidence of Evolution

Quiz

•

9th - 10th Grade

16 questions

MATZKE Photosynthesis/Respiration

Quiz

•

9th - 12th Grade

40 questions

Sea Otters Quiz #2

Quiz

•

10th Grade

20 questions

Punnets and Pedigrees

Quiz

•

9th - 10th Grade

AP Bio Natural Selection

a bird that can easily outcompete other birds for food and that can produce many eggs has a high

Which of the following is a true statement about natural selection?

The small seeded plants in an area were killed by a fungus. Finches with a small beak cannot crack open the large seeds from the plants that were left. What type of selection is likely to occur?

A fire has wiped out the vegetation that produces medium sized seeds. As a result, the finches left can feed on seed that are available in two sizes: small and large. What type of selection is likely to take place in this population?

In Canada, the people have overfished the salmon in a particular river. They catch the larger salmon and throw the smaller salmon back into the river. Over time, what type of selection is likely to take place?

In a forest in Germany, there is a rat who has three fur coat colors: a light creamy color, a medium tan color, and a dark brown color. In this particular forest, the floor is a medium brown and the intermediate tan color mouse is better camouflaged.

What type of selection is depicted in the picture?

_{What type of selection?}

What type of natural selection is this?

Scientists find that most feral cats in a neighborhood have whiskers about 12 cm long. After about 15 generations of stabilizing selection, what would you expect to see?

Access all questions and much more by creating a free account

Popular Resources on Wayground

Discover more resources for Biology