Natural Selection Amplify

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 

• No, they change because of natural selection

What is a trait that makes it less likely that an individual will survive in a specific environment

• A non-adaptive trait

• A feature

• A trait

• An adaptive trait

Tags

NGSS.MS-LS3-1

What information can you gain from this histogram?

• The population has high distribution

• The population has low variation

• The population has high variation

• The population has no variation

Tags

NGSS.MS-LS4-4

What can you tell about this population of newts from the histogram

• Most of the newts have high poison levels

• Most of the newts have medium poison levels

• Low poison level is the adaptive trait

• You cannot tell anything about the poison levels

Tags

NGSS.MS-LS2-1

How can an individual be born with an adaptive trait?

• The individual can choose to change to the adaptive trait when they want to.

• The parents had genes for the adaptive trait, which they passed down to the individual.

• The individual can choose to have the adaptive trait at birth.

• The parents can choose for the offspring to have genes for the adaptive trait.

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

any difference between organisms of the same species

• adaptation

• camouflage

• selective breeding

• variation

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Look at Diagram 1. How could you describe this newt population?

• There are fifteen poison levels shown, and each individual has a different amount of poison.

• There is one poison level shown, and all newts have the same amount of poison.

• There are three poison levels shown, and no poison-level trait is more common than the others.

• There are three poison levels shown, and one poison-level trait is the most common.

Tags

NGSS.MS-LS4-4

2. 3. Look at Diagram 2. Did SOME newts from all poison levels die? (Xs over the newts mean they died)

• YES

• NO

Tags

NGSS.MS-LS2-4

If this trend continued, which color ostrilopes would become LESS common in the population over time?

• Blue

• Yellow

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

How do you think the environment change between time 1 and time 2? How did the population change?

• The environment became brown. Brown foxes are more likely to survive, so the white foxes changed to have brown fur.

• The environment became brown. Brown foxes are more likely to survive, so both kinds of foxes passed on the gene for brown fur to their offspring.

• The environment became brown. With each generation, more brown foxes survived long enough to pass on the gene for brown fur to their offspring.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4