Natural Selection

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

Dogs such as Chihuahuas are examples of....

• Artificial Selection 
• Natural Selection 
• Mutations 

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the organism knew it needed that trait, survives, and passes it on.

Mutations are a change in what?

• DNA

• tRNA

• protein

• rRNA

"Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

• Natural Selection

• Evolution

• Selective Breeding

• Artificial Selection

According to natural selection, light colored tree trunks would favor

• light colored moths

• dark colored moths

• red colored moths

• red and light colored moths

According to natural selection, organisms more suited to their environment are better able to

• Sleep

• Survive

• Perish

• Migrate

A variation is . . .

• when organisms have camouflage like spots or stripes

• an organism from a different dimension

• when you order different food than your friend

• differences between organisms in the same species

Which animal is the most FIT to live in the desert?

• Penguin

• Bear

• Tiger

• Lizard

Choose a word from the drop-down menu for each blank to complete the sentences below.

The population of a particular moth species was measured over the course of three years.  Based on the data in the table, the black moth population _____ compared to the white moth population.  This is because the _____ moth is naturally selected by the ecosystem.

• steadily increases, black

• steadily increases, white

• steadily decreases, black

• steadily decreases, white