Natural Selection 2023

Which of the following best illustrates natural selection?

• An organism with favorable genetic variations will tend to survive and breed successfully.

• A population monopolizes all of the resources in its habitat, forcing other species to migrate.

• A community whose members work together utilizing all existing resources and migratory routes.

• The largest organisms in a species receive the only breeding opportunities.

Tags

NGSS.MS-LS4-4

The graphs below show the changes in crab color at one beach.

Which of the following is most likely to have caused the change in the distribution?

• A new predator arrived that preferred dark-tan crabs.

• A new predator arrived that preferred light-tan crabs.

• A change in beach color made medium-tan crabs the least visible to predators.

• A change in beach color made medium-tan crabs the most visible to predators.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

Tags

CCSS.RI.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

A population that is isolated in a remote environment is still able to experience genetic variation. How could genetic variation that contributes to evolution occur in such a population?

• A mutation in a liver cell produces liver cancer.

• Lateral gene transfer occurs that produces an organism that is less resistant to drought.

• A mutation in an egg cell causes a change in DNA that produces an organism that is more sensitive to sunlight.

• A mistake in DNA replication before meiosis produces an organism that is better able to outrun predators.

Tags

NGSS.MS-LS4-4

Domesticated dogs are an example of:

• Natural Selection
• Selective Breeding

Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the yellow insects over time?

• The green insect population will increase and the yellow insect population will decrease.

• The green insect population will decrease and the yellow insect population will increase.

• Both insect populations will remain constant over time.

• Both insect populations will increase over time.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

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-LS4-4

NGSS.MS-LS2-4

NGSS.MS-LS1-4

A population of rabbits grows rapidly from one year to the next. Then one year, a disease strikes approximately one fourth of the adult rabbits. The disease remains with the population in the years that follow.

As explained by Darwin’s theory, which of these conditions allows the rabbit population to evolve by natural selection?

• The disease affects adult and juvenile rabbits equally.

• The disease reduces the ability of the rabbits to reproduce.

• Some rabbits are resistant to the disease, and they pass the resistance to their offspring.

• No rabbits are resistant to the disease, and all die when the disease strikes them.

Tags

CCSS.RI. 9-10.7

CCSS.RI.11-12.7

CCSS.RI.8.7

CCSS.RL.11-12.7

CCSS.RL.9-10.7

Natural selection occurs during the lifetime of a single organism.

• True

• False

Which layer is the youngest

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-4