Two organisms that are closely related would have

completely different DNA sequence

What is suggested by the similarity of early embryos of different species of vertebrates?

evolution froma distant common ancestor

no evolutionary relationships between the groups

similar environments in the past

According to the law of superposition, the oldest fossils are found

Near the bottom of the rock layers

In the middle of the rock layers

are natural and produce genetic diversity

are unnatural and reduce genetic variation.

are a mechanism of natural selection

are a way for organisms to increase their chance of undergoing genetic drift.

What is the belief of the theory shown

Prokaryotes might have entered the host cell as prey or parasites.

Natural selection is the main mechanism of evolution

Life can come from non-living matter

Miller/Urey and other scientists have shown that:

Amino acids could be produced from inorganic molecules

Life on early Earth required material from space

Cells survived in the primitive atmosphere

Simple cells can be produced in a laboratory

Based upon the conditions of the early Earth, which forms of live most likely appeared first?

Prokaryotic simple single-celled organisms

Eukaryotic complex multicellular organisms

Scientists are studying the evolutionary history of a group of plants in the United States, and they developed an evolutionary tree, as shown below. Which statement can be inferred from the evolutionary tree?

Species 3 is most closely related to Species 4

Species 1 is most closely related to Species 8.

Species 2 is most closely related to Species 3.

Species 4 is most closely related to Species 7

Which of the following correctly describes the general trend in hominid evolution?

increase in brain capacity, bipedalism, use of tools

larger body size, broad forehead, smaller brains

thickening of the skull, protruding teeth, organized hunting

large canine teeth, small skulls, diet of coarse plant material

What does this suggest about hominid evolution and jaw size?

They evolved to be smaller over time

They evolved to be larger over time

Jaws changed because of a change in brain size

Chimpanzees live on an island in a small population whose traits have remained constant. What effect would genetic drift have on these chimps?

Extinction is likely due to limited genetic variation

Other primates can breed with them to produce a new species

Isolation will cause new traits to appear

Looking at the fossil record, horses have gotten bigger over time. What does this suggest?

Horses have changed as a result of natural selection

Horses have increased in number

Horses do not appear in the fossil record

Small horses were selccted for and had an advantage

What is the definition of natural selection?

Organisms that are chosen by environmental pressures such as climate, available food, predators and habitat.

Genes that are chosen by humans such as farmers and ranchers

EvidGenes that are chosen by scientist and academics.

In 1915, a disease killed almost all the oysters in a Canadian bay. The few oysters that survived reestablished the population. By 1940, the disease-causing organism was still present in the bay, but the size of the oyster population was greater than it was before 1915. Which of the following statements describes what most likely occurred in the oyster population between 1915 and 1940? /

The oysters that survived in 1915 had resistance to the disease, so the proportion of resistant oysters in the population increased by natural selection

The oysters that survived in 1915 bred with other species, so the offspring could not be infected by the disease anymore.

The oysters that survived in 1915 had offspring that learned to fight all disease, so disease rates in the oyster population were lower.

The oysters that survived in 1915 mutated to reproduce more quickly, so the reproductive rate exceeded the disease rate in the oyster population.

Evolution & Natural Selection Test Review

Biology

9th - 12th Grade

NGSS covered

Used 157+ times

Evolution & Natural Selection Test Review

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29 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following best illustrates natural selection?

An organism with favorable genetic variations will tend to survive and breed successfully

A population monopolizes all of the resources in its habitat, forcing other species to migrate

A community whose members work together utilizing all existing resources and migratory routes

The largest organism in the species receive the only breeding opportunities

Tags

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A small portion of the population that is geographically isolated from the rest of the population runs the risk of decreased.

genetic drift

mutation rate

genetic variation

natural selection

Tags

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of these would have the least effect on natural selection in a subspecies of giraffes that is geographically isolated from other subspecies of giraffes?

available niches

existing predators

chromosome number

available food resources

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

NGSS.MS-LS1-5

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased. Which of the following describes a necessary condition for these changes in the finch populations to occur?

overproduction of offspring

limited beak variations

fewer mutations

limited food resources

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-5

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The sorting and recombination of genes during reproduction is an important step in the evolution process. What effect do sorting and recombination have on a population?

Decreases the chances of producing offspring that are adapted to the environment.

Increases the ability of all the offspring to adapt to the environment

Decreases variation which helps maintain a stable population

Increases variation that enables a species to adapt to change

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is this an example of?

vestigial structures

embryology

homologous structures

fossil record

Tags

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a change in an organism that allows for it to survive in its environment?

homologous

vestigial

variation

adaptation

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

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Evolution & Natural Selection Test Review

Which of the following best illustrates natural selection?

A small portion of the population that is geographically isolated from the rest of the population runs the risk of decreased.

Which of these would have the least effect on natural selection in a subspecies of giraffes that is geographically isolated from other subspecies of giraffes?

The sorting and recombination of genes during reproduction is an important step in the evolution process. What effect do sorting and recombination have on a population?

What is this an example of?

What is a change in an organism that allows for it to survive in its environment?

Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring?

Two organisms that are closely related would have

Genetic differences between organisms of the same species

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