REVIEW ADAPTATION

What is natural selection?

• a short change over a short time period.

• the process by which organisms better suited for their environment survive and reproduce.

• the process of cells dividing to make new cells.

What are external features?

• Things that are inside the organism.

• Structures of living organisms

• Structures of dead organisms.

• Things that are inside of a classroom.

These cause variations.

• mutations
• adaptations
• a desire to change
• injuries

The discovery of DNA and genes proved that

• Darwin was wrong
• mutations create variations and come from genes
• we are all the same species
• bats and butterflies have a very close common ancestor

What is most likely to happen to moth populations in the picture shown?

• Light moths--hunted easily, dark moths--population increase

• Dark moths--hunted easily, dark moths--population increase

• Light moths--hunted easily, light moths--population increase

• Lights moths will change their color to match dark moths.

If a population can't adapt to a changing environment fast enough, what might happen?

• They will hibernate until they can live in the environment.

• The population will stay the same.

• The species in the population will live longer.

• The species will go extinct.

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

What is NOT an example of an adaptation

• Camouflage to hide from predators

• Enlarged heart to help a cheetah run fast.

• Building muscles throughout your lifetime to get strong.

• Hibernating during the winter.

Some organisms have colorful appearances to warn their predators (animals that would try to eat them) that they are harmful or do not taste good. If other species, that are not harmful, mimic these colors how would that help them reproduce?

• The bright colors would help them attract more mates and allow them to reproduce

• Because they have similar colors they can mate with the harmful species to create hybrids
  

• Bright colors help them be more visible in the dark and most mating occurs after dark

• The similar markings and colors will increase their chance of predators avoiding them and allow them to survive to reproduce

Which organism has an advantage in its environment?

• The fastest

• The strongest

• The best adapted

• The most tamed