Evolution Test Study Guide

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

• Genes

• Traits

• Variations

• Theories

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

• Because they are more likely to survive and reproduce.

• Because they come from recessive alleles.

• Because they come from dominant alleles.

• Because the trait is an acquired phenotype.

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution

• Extinction

• Natural Selection

• Artificial Selection

The theory of evolution by natural selection means that what is changing over time?

• The inherited traits of a population.

• Hair color and eye color

• The acquired traits of a population.

• Attractive features.

Mutations are a change in what?

• DNA

• Genotype

• tRNA

• Phenotype

The trees these moths used to live on were white, but have been covered in smoke and dust from coal factories. Which moth will be more successful in this environment?

• Dark moth

• Both will be equally successful.

• Light moth

• Neither will be successful.

Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?

• Dark moth

• Both will be equally successful.

• Light moth

• Neither will be successful.

Why is the moss population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Where do adaptations come from?

• The organism decides to adapt.

• Mutations that give an organism an advantage in its environment

These moths are all the same species. The differences between their wings is an example of ________________

• Natural Selection

• Homeostasis

• Variation

• Extinction