8th Grade Natural Selection

What is a population?

• Group of same type of organisms

• Group of different types of organisms

• Mixture of same and different types of organisms

Natural Selection Unit Question

• Why do some rainstorms have more rain?

• Why do populations change over time?

• Populations stay the same always

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

What is a trait?

• a random characteristic of an individual organism

• a specific characteristic of an individual organism

• a specific characteristic of a random organisms

• a random characteristic of an individual organism

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What is a generation?

• group of individuals born and living around the same time

• one individual

• group of individuals born and living at different times

• multiple individuals

The number of individuals with each trait in a population can change over time

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What is everything (living and nonliving) that surrounds an organism?

• Population

• Mutation

• Environment

• protein molecule

Tags

NGSS.MS-LS2-3

Adaptive trait

• helps organisms die faster

• helps organisms live longer

• neither

• both

Tags

NGSS.MS-LS4-4

Non-Adaptive Trait

• Helps organisms die faster

• Helps organisms live longer

• neither

• both

Tags

NGSS.MS-LS4-4

Whether or not a trait is adaptive depends on what?

• The population

• The organism

• The trait

• The environment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

What is an instruction for making a protein molecule?

• skin

• atoms

• genes

• hair

Tags

NGSS.MS-LS3-1