Speciation #1

Front

What happens when species produce too many offspring?

Back

Only those that are best fit can survive.

Front

If an environment changes, populations with ______________ have a better chance of survival.

Back

Genetic variations.

Front

In a cold climate with snow, if brown and white rabbits are introduced, what will happen over generations?

Back

There will be more white rabbits than brown rabbits.

Front

___ are mistakes in the DNA that cause variation within a species.

Back

Mutations.

Front

While at the Galapagos Islands, Charles Darwin found that:

Back

There were slight differences in finches from island to island, slight differences in finches on the islands compared to the mainland, and the shape of the finches' beaks were different on each island.

Front

What is speciation?

Back

The process by which new species arise from existing species.

Front

What role do mutations play in evolution?

Back

Mutations introduce genetic variation, which is essential for natural selection.

Front

Define natural selection.

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is genetic variation?

Back

Differences in DNA among individuals within a species.

Front

How does environmental change affect species survival?

Back

Species with genetic variations are more likely to adapt and survive.