ES Natural Selection & Adaptations Test

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 trait is an acquired phenotype.

Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

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

• natural selection

• mutation

• camouflage

• adaptation

Why do frogs and other organism reproduce so many eggs or offspring?

• so that their babies can have friends to play with
• the more offspring the more likely the offspring will survive
• the more offspring the less likely offspring will survive 
• the more offspring the less competition

Which of the following means "genetic change over time"

• natural selection
• speciation
• evolution
• fitness

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

The act of blending in with your environment is called?

• mimicry
• camouflage
• mutation
• hybridization

When an organism is completely wiped out of existence, we call it?

• extinction
• adaptation
• evolution
• inbreeding

The purpose of selective breeding (artificial selection) is to

• Get bigger animals

• get smaller animals

• create animals with desirable traits

• create animals with bad traits