Patterns in Evolution

Posljednje ažuriranje 5 months ago

21

Biblioteka

Patterns in Evolution

Posljednje ažuriranje 5 months ago

21

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What is speciation?

Random genetic mutations occur.

Process of populations evolving into distinct species.

Change in one species only.

Evolution of similar species.

Increase in population size.

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What is speciation?

The formation of new species over time.

The mixing of species.

The extinction of a species.

The migration of animals.

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What is extinction?

Elimination of a species

Natural selection process

Change in habitat only

Increase in species population

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What is gradualism in evolution?

Slow, constant changes over time.

Rapid changes in species

No change in species over time

Sudden extinction of species

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What does punctuated equilibrium describe?

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What is divergent evolution often caused by?

New environments for species

Similar environments for species

Separate populations moving closer

Mutation in a single species

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What is convergent evolution?

Animals become similar due to genetic mutation.

Related species evolve different traits.

All species in one area evolve the same traits.

Unrelated species evolve similar traits due to environment.

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What is coevolution?

Species becoming extinct together.

Species evolving in isolation.

Species adapting individually.

Species evolving together.

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What is speciation?

The formation of new species over time.

The mixing of species.

The extinction of a species.

The migration of animals.

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What type of evolution did the iguanas undergo?

Adaptive radiation resulting in different species.

Gradual extinction of old forms.

Convergent evolution into similar forms.

Artificial selection by humans.

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What is coevolution?

Species becoming extinct together.

Species evolving in isolation.

Species adapting individually.

Species evolving together.

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Why do species coevolve?

To compete for resources.

To avoid extinction together.

To dominate each other's habitats.

To adapt to each other's changes.

What happens to gene pools during speciation?

They gradually become different and separate.

They always increase in size.

They only change due to disease.

They remain unchanged indefinitely.

They become identical over time.

At what point are two groups considered different species?

When they live in different habitats.

When they can no longer reproduce with each other.

When they look different physically.

When they eat different foods.

When they have different predators.

What type of evolution did the iguanas undergo?

Adaptive radiation resulting in different species.

Gradual extinction of old forms.

Convergent evolution into similar forms.

Artificial selection by humans.

What is mass extinction?

Loss of habitat gradually

Natural selection over time

Low species reproduction rates

Sudden loss of many species

What can lead to gradual extinction?

Changes in the environment

Global warming only

Meteor impacts

Immediate climate shifts

What is a key factor in gradualism?

One-time genetic shifts in species

Immediate changes in ecosystems

Mass extinction events

Time allows for small changes to accumulate.

What does gradualism take to produce new species?

Long periods of time and small changes.

External impacts only

Instantaneous changes

Single major mutations

What happens during bursts in punctuated equilibrium?

How does divergent evolution affect species appearance?

They stay exactly the same

They become increasingly different

They become identical to each other

They become smaller in size

Why do species evolve differently in divergent evolution?

They don't share common ancestors

They all migrate to the same area

They are genetically engineered

Due to environmental changes

Which of these is an example of convergent evolution?

Dogs and cats living in the same home.

Frogs and fish living in water.

Eagles and owls hunting at night.

Sharks and dolphins swimming in the ocean.

Why do unrelated species evolve similar characteristics?

They share the same diet.

They live in the same geographical area.

They live in similar environments.

They have a common ancestor.

Why do species coevolve?

To compete for resources.

To avoid extinction together.

To dominate each other's habitats.

To adapt to each other's changes.