Natural Selection

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.

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

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

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• 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 they can see the dark mice more easily

What process is being shown in this image?

• Variation
• Natural Selection
• Selective Breeding
• Homeostasis

"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

The more genetic variation a population has,

the more likely it is for some individuals to

• evolve

• migrate

• survive

• mutate

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 organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

Do organisms "decide" to evolve and change?

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

When the environment changes more quickly than a species can adapt, the species may become:

• Cold

• Overdeveloped

• Overpopulated

• Extinct