Amplify Natural Selection Review

Blue jays are birds that live in the forest. They can have beaks of different thicknesses. Blue jays use their beaks to get to the seeds they eat. Blue jays with thinner beaks can easily reach and eat the seeds inside pinecones. Blue jays with thicker beaks can easily open and eat seeds with hard shells. If their environment changes to have only seeds in pinecones, which of the following blue jay populations will most likely survive?

• Populations 1 and 2 will most likely survive.

• Populations 2 and 3 will most likely survive.

• Only Population 2 will survive because it is the only population with variation.

• All the populations will survive because the blue jays will change the thickness of their beaks if they need to.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

Guppies are small fish that live in South American rivers. They can have different-sized spots on their bodies. The river bottoms are covered in rocks. Guppies with spots that are the same size as the rocks on the bottom are harder for bigger fish to see and catch. The diagrams below show three possible guppy populations. If their environment changes to have only large rocks, which of the following guppy populations will most likely survive?

• Only Population 2 will survive because it is the only population with variation.

• All the populations will survive because the guppies will change the size of their spots if they need to.

• Populations 1 and 2 will most likely survive.

• Populations 2 and 3 will most likely survive.

Tags

NGSS.MS-LS4-4

Brown anoles are lizards that live on islands in the Bahamas. They can have legs of different lengths. Lizards with shorter legs are better at climbing trees than lizards with longer legs. This makes lizards with shorter legs better at escaping from the floods that sometimes cover the islands. The diagram below shows a population of lizards that live on an island. At time 1, the population had the same number of lizards with short legs and lizards with long legs. At time 2, after many generations, many more lizards had short legs and fewer lizards had long legs. How did the environment change between time 1 and time 2? How did the population change?

• You cannot tell how the environment changed. With each generation, more lizards passed on the gene for short legs to their offspring.

• There were more floods. Lizards with short legs are more likely to survive, so the lizards with long legs changed to have short legs.

• There were more floods. Lizards with short legs are more likely to survive, so both kinds of lizards passed on the gene for short legs to their offspring.

• There were more floods. With each generation, more lizards with short legs survived long enough to pass on the gene for short legs to their offspring.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

NGSS.MS-LS1-5

What is any difference in traits between individual organisms?

• Population

• Variation

• Distribution

• Environment

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

What is the number of individuals with each trait in a population?

• Cause

• Prediction

• Population

• Distribution

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

What is a group of the same type of organism living in the same area?

• Trait

• Population

• Generation

• Adaptive

What is a a group of individuals born and living at about the same?

• Variation

• Distribution

• Non-Adaptive

• Generation

What is a specific characteristic of an Individual organism?

• Environment

• Effect

• Trait

• Cause

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

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

• Adaptive

• Generation

• Cause

• Trait

Tags

NGSS.MS-LS4-4

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

• Effect

• Trait

• Environment

• Population

Tags

NGSS.MS-LS2-3