Populations and Resources Amplify Test

A large population of ducks lives in an area with a lake. In the last 40 years, the size of the duck population has stayed the same. What must be true about the duck population during the last 40 years?

• The number of ducks that were born was the same as the number of ducks that died.

• Humans started protecting the duck population so they stopped dying.

• No ducks were born and no ducks died.

• The ducks did not have any baby ducks during these years.

a group of the same type of organism living in the same area

• population

• populist

• popcorn

• pop music

Which of the following COULD have caused the moon jelly population to decrease?

• Algae decrease

• Zooplankton increase

• Walleye pollock increase

• Sea turtle decrease

• Orca decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Scientists have been studying four populations in the ocean near Alaska. In the ocean, sharks eat sea otters, and both sea otters and sea stars eat clams (a type of shellfish). The data shows that recently the shark population increased. How will the increase in the shark population affect the other populations? Be sure to explain whether the sea otter population, the sea star population, and the clam population will change, and why.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-3

when two or more populations use the same resource, such as the same food source

• competition

• consumer population

• resource population

• parasitism

Tags

NGSS.MS-LS2-1

A resource population is

• a population that eats organisms from another population

• a population that is eaten by organisms from another population

• a population that uses up more energy than other populations

• a population that gets it's energy all from plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Populations can only be either a resource population OR a consumer population. They cannot be both.

• True

• False

Tags

NGSS.MS-LS2-1

A population of rabbits in a forest has been increasing steadily over the past decade. What could be a possible reason for this increase?

• A) An increase in the number of predators.

• B) A decrease in the availability of food resources.

• C) An increase in the birth rate of rabbits.

• D) A decrease in the birth rate of rabbits.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

In a controlled experiment, a scientist wants to study the effect of a new fertilizer on plant growth. What should be the control group in this experiment?

• A) Plants that receive the new fertilizer.

• B) Plants that receive no fertilizer.

• C) Plants that receive a different type of fertilizer.

• D) Plants that receive twice the amount of the new fertilizer.

Which of the following is an example of a renewable resource?

• A) Coal

• B) Natural Gas

• C) Solar Energy

• D) Oil