Exploring Natural Selection and Evolution

Which of the following best describes the concept of natural selection?

• The process by which organisms with favorable traits are more likely to survive and reproduce.

• The random change in the DNA sequence of an organism.

• The intentional breeding of organisms to produce desired traits.

• The movement of organisms from one place to another.

Tags

NGSS.MS-LS4-4

What is the primary reason for the extinction of a species?

• Overpopulation

• Lack of genetic variation

• Natural disasters

• Inability to adapt to environmental changes

Tags

NGSS.MS-LS4-1

In a population of beetles, some are green and some are brown. Birds can easily spot and eat the green beetles. Over time, what is likely to happen to the population?

• The population will become entirely green.

• The population will become entirely brown.

• The population will remain the same.

• The population will become extinct.

Tags

NGSS.MS-LS4-6

How does genetic variation within a population affect its ability to survive environmental changes?

• It decreases the population's ability to adapt.

• It increases the population's ability to adapt.

• It has no effect on the population's ability to adapt.

• It causes the population to become extinct.

Tags

NGSS.MS-LS4-4

How does natural selection lead to changes in a population over time?

• By increasing the genetic diversity of the population

• By favoring individuals with advantageous traits

• By causing random mutations in the population

• By eliminating all individuals with disadvantageous traits

Tags

NGSS.MS-LS4-6

What process is being shown in this image?

• Variation
• Natural Selection
• Selective Breeding
• Homeostasis

Tags

NGSS.MS-LS4-4

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

The image shows light and dark colored moths that live on a tree. Which result is most likely to occur to the moth population over time due to predation?

• The number of light colored moths in the population will increase

• There will be more dark colored moths than light colored moths

• The number of light colored moths will decrease

• The dark colored moths will move to a different type of tree

Tags

NGSS.MS-LS2-4

What is the role of mutations in the process of natural selection?

• Mutations are the primary cause of extinction.

• Mutations introduce genetic variation that can be beneficial.

• Mutations eliminate genetic diversity in a population.

• Mutations always lead to harmful traits in a population.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4