7th (7.11C - Natural Selection/Selective Breeding) Part 1

Darwin observed 13 species of finches on the Galapagos Islands. What did Darwin conclude about the finches?

• They evolved from a common ancestor.

• They all came from different continents.

• They evolved from 13 different types of birds.

• They developed from other types of organisms.

According to natural selection, which organisms are most likely to survive?

• The fastest organisms

• The biggest organisms

• The best-adapted organisms

• The most domesticated organisms

Which is an example of SELECTIVE BREEDING ?

(also called artificial selection)

• A giraffe’s long neck.

• Training a horse to run faster.

• Clipping a horse’s tail so it is not too long.

• Cross breeding a Labrador retriever with a poodle.

What is 1 way selective breeding is DIFFERENT from natural selection? (Selective breeding is also called artificial selection.)

• Selective breeding does not produce any offspring at all.

• Humans, not nature, control reproduction in selective breeding.

• Nature, not humans, controls reproduction in selective breeding.

• Animals are the only organisms that can be selectively bred, while both plants and animals can undergo natural selection.

When humans breed 2 organisms with specific traits to influence the traits of the next generation, it is __________.

• selective breeding

• natural selection

This sequence of pictures of a population of mice in the wild BEST represents _______.

• natural selection

• selective breeding

• inbreeding (selective breeding that crosses two organisms with similar genetic traits.)

• asexual reproduction

“People identify the trait they want, then only allow animals with that trait to breed with one another.” BEST matches:

• Asexual Reproduction

• Natural Selection

• Selective Breeding

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

• Evolution

• Natural Selection

• Selective breeding

• Artificial Selection

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

• Organisms that have them are more likely to survive and reproduce.

• Favorable traits come from dominant alleles.

• Favorable traits come from recessive alleles.

• Because the trait is an acquired phenotype.

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive

• No, they change because of natural selection