Natural Selection

_________ is the change in the inherited traits of a population over many generations.

• DNA

• Genetic Variation

• Evolution

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What must occur for evolution to happen?

• Genetic variation

• Same traits

Tags

NGSS.MS-LS4-4

What is the term for the process by which organisms better adapted to their environment tend to survive and produce more offspring?

• Natural Selection

• Genetic Drift

• Speciation

Tags

NGSS.MS-LS4-4

____________ is a process by which

a population’s environment determines which traits

are beneficial and which are not.

• Allele Frequency

• Natural Selection

• Evolution

Tags

NGSS.MS-LS4-4

How is it determined which traits are "better" than others?

• Common traits

• If traits help animals survive & reproduce

• Makes the animal bigger

Tags

NGSS.MS-LS4-4

When an environmental change is extreme and rapid, populations may be

_______ likely to adapt because the process of natural selection occurs over

______ generation(s).

• more; many

• less; one

• less; many

• more; one

Tags

NGSS.MS-LS4-4

Traits that help organisms survive and reproduce in

their current environment are called ______

• Genetic Variations

• Adaptations

• Changes

• Evolution

Mutations are.....Select all that apply

• Base pairs can be added, removed, or substituted

• A change in the base-pair sequence of a gene

• Can be helpful, harmful, or neutral

Tags

NGSS.MS-LS3-1

What type of mutation occured?

CCGATTC --> CCATTC

• Added

• Removed

• Substituted

• Nothing

Tags

NGSS.MS-LS3-1

What is a phenotype?

• A trait

• A gene

• Physical characteristic (eg. fur color)

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1