A species is defined as -

Animals that can breed with one another and produce fertile offspring

Animals that share a common ancestor

Animals that share the same environment

Animals that are members of the same population

What will happen to individuals not well adapted to their environment?

They will either die or be forced to move

They will pass on these traits to a large number of offspring.

The will beat out their competition so that they are well adapted,

They will be forced to adapt to survive

What best describes Darwin's theory of Natural Selection?

Organisms most fit to reproduce in their environment will pass on their traits to the most offspring in the next generation.

The strongest animals in a population will survive and reproduce the most

Individual animals will adapt to their environment to better survive.

Animals not fit to survive in their environment will adapt in order

What is fitness in terms of natural selection?

The ability of an organism to successfully reproduce

How many resources an organism is able to obtain

How can scientists use DNA to determine if organisms share a common ancestor?

By comparing how similar the sequences of nitrogen bases are

The number of genes in the DNA strand

The number of chromosomes the animal has

Gene flow will ________________ the genetic variation in a population

Increase or decrease depending on the animals movement

What best describes disruptive selection's effect on a populations genetics?

Two distinct phenotypes groups will be formed at the extremes and the average phenotype will die off

The phenotype extremes will die off and the average phenotype will increase

One phenotype extreme will be selected for and the population will shift towards that phenotype

What best describes stabilizing selection?

Selection that benefits that average of two different phenotypes, increasing the middle of population

Selection that benefits two separate phenotypes, creating two peaks in the graph

Selection that benefits one of two possible phenotypes, shifting the population towards that trait

Selection performed by man, creating new phenotypes

What best describes directional selection on a population?

The whole population will move towards one end of the phenotype graph (taller, smaller, darker, etc)

The average phenotype will become more common over time

Two distinct traits will have an advantage, splitting the population in two

What separates animals from reproducing in a behavioral isolation?

Animals are separated by not knowing the proper courtship rituals.

Animals are separated by land forms.

Animals are separated by having different breeding seasons.

Animals are separated by their body structures

Which of the following is not a factor that drives natural selection and evolution?

All of these drive natural selection and evolution

What will happen to a population if a reproductive isolation develops between members of the population?

The groups will gradually change eventually becoming new species

They will revert back to ancestral traits

The populations will rapidly increase in size

How is embryology used as evidence for evolution?

Can be used to compare similarities in development and determine if organisms share common ancestors

This can be used to trace the development of vestigial structures

This can be used to count molecular sequence similarities

This can tell scientists about the habitats of an organisms ancestors

How does the bottleneck effect affect the genetic variation in a population?

It usually decreases the variation

It usually increases the variation

It does not affect the variation

Why do beneficial adaptations become more common in populations over time?

Those with the adaptation survive longer and reproduce more

More animals will choose the adaptation to help them survive

More animals will have the mutation over time

Evolution Review

Authored by Chris Sheppard

Biology

9th - 12th Grade

NGSS covered

Used 101+ times

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32 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What are the evidences of evolution that can tell scientists that animals share a common ancestor?

Homologous structures

Similar DNA sequences

Embryological homologies

All of the above

Tags

NGSS.HS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A trait that increases an organism's chance of obtaining resources and reproduction is called a(n) -

Homologous structure

Mutation

Adaptation

Vestigial structure

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What best describes a vestigial structure?

Body parts that are similar in structure, but may be different in function

Body parts that are similar in function, but have different structures

A trait inherited from a common ancestor

Body part that is reduced in size, because it no longer serves an important function

Tags

NGSS.HS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What can scientists look for in fossils to determine if organisms are related

The animals behavior

The animals body structures

The animals exact age

The animals skin color

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What best describes a homologous structure?

Body structures that serve the same function, but have different structures

Body body that have the same structural layout, but may serve different functions

Body parts that no longer serve an important function

Body parts that aid in organisms survival in it's environment

Tags

NGSS.HS-LS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which type of selection is pictured here?

Stabilizing selection

Disruptive selection

Directional selection

Artificial selection

Tags

NGSS.HS-LS4-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The type of selection picture here is -

Directional Selection

Disruptive selection

Stabilizing Selection

Artificial selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

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Evolution Review

What are the evidences of evolution that can tell scientists that animals share a common ancestor?

A trait that increases an organism's chance of obtaining resources and reproduction is called a(n) -

What best describes a vestigial structure?

What can scientists look for in fossils to determine if organisms are related

What best describes a homologous structure?

Which type of selection is pictured here?

The type of selection picture here is -

Which of these graphs shows a directional selection on a population?

A species is defined as -

What will happen to individuals not well adapted to their environment?

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