When has speciation occurred?

The disappearance of a species refers to

What happens when species produce too many offspring?

When a population becomes divided by an event such as a new river forming, ____________ has occurred.

____________ = development of new species when a population is reproductively isolation in some form.

What do we call a group of individuals that can reproduce successfully in nature?

When two or more populations no longer successfully reproduce it is called...

Which are causes of speciation?

When a species failed to adapt or compete it is called

Which scenario describes an example of extinction?

Which of these could cause a mass extinction?

Members of the same species always live in the same geographical location.

Members of a species can breed with other members of the same species.

When members of a species breed, their offspring are able to produce offspring.

Which of these describes a species that has become extinct?

True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.

Species that are in danger of becoming extinct are called __________.

A ______________ species is on its way to becoming endangered or extinct.

Humans are causing extiction in which ways?

Which period are we currently in?

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