Natural Selection

Match the following terms with their definitions

• a change in a species DNA over time because of natural selection

• Mutation

• A permanent change in the DNA

• Variation

• Any variation that makes an organism better able to survive

• Adaptation

• An inherited trait that makes and individual different

• Evolution

Tags

CCSS.L.6.4A

CCSS.RI.6.4

Match the following

• Leftover traits that no longer have a purpose

• Relative dating

• Traits similar in two different species

• Extinction

• measuring the position of a fossil in layers of rock to determine its age

• Homologous Structure

• When ALL members of a species die

• Vestigial structure

Tags

CCSS.L.6.4A

Whales and dolphins both descended from a dog-like creature. What would we call the dog-like creature?

• Great-Grandparent species

• Old Species

• A common ancestor

• A common descendant

Tags

CCSS.RI.6.4

What do we call this "family tree"?

• Natural selection

• Evolution

• Variation

• Common ancestor

Tags

CCSS.RI.6.7

What is an inherited trait?

• A skill that is developed through practice

• A characteristic determined by an organism's genes

• an organism's place in the food web

• an organisms relationship to its parents

When is a trait most likely to be passed on to the next generation?

• When it serves no purpose

• When it becomes an advantage to the organism's survival

• When it gives the organism a lot of water

• When it prevents the organism from finding a mate

In the phrase "survival of the fittest," the term "fittest" refers to:

• The best-adapted organisms

• The biggest organisms

• The smartest organisms

• The fastest organisms

Tags

CCSS.L.6.4A

CCSS.RI.6.4

CCSS.RL.6.4

When nature "selects" a variation, that means that the trait:

• Gets passed along from generation to generation

• Causes the population to shrink

• Has brought about a new species

• Helps prey escape predators

Tags

CCSS.RI.6.4

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

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

Tags

CCSS.RI.6.2

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.