Ecosystems

This graph represents a...

• Carrying Capacity

• Energy and matter transfer

• Sustainable yield

• Population changes over time

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

How long should the hunting season last?

• 28 days

• 8 days

• 16 days

• 0 days

How many ducks should be hunted each day?

• 28 ducks

• 8 ducks

• 16 ducks

• 0 ducks

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What might happen to the ecosystem if the hunting season was canceled (set to zero days)?

• The producers would overpopulate

• The hunted animal would overpopulate and increase competition

• There would be less competition for food

• The ecosystem would remain balanced

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-1

Choose TWO effects of urbanization on an ecosystem.

• There will be an increase in the amount of producers which will lead to an increase in the population of many herbivores in the area.

• The population of herbivores will decrease so the population of predators will increase.

• Some of the species of consumers may go extinct

• Certain species of consumers will have to migrate away to find alternate sources of food

• The producers and consumers will likely be unaffected by the change to the ecosystem

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Select the answer that best describes this type of interaction

• Predator and prey

• Symbiotic

• Competition

• Decomposition

Tags

NGSS.MS-LS2-2

This graph shows how the amount of meat the world eats has changed over time. How could this affect the supply of food AND Earth's natural resources?

• The supply of food will decrease. The amount of resources will increase.

• The supply of food will increase. The amount of resources will decrease.

• Both the supply of food and Earth's natural resources will increase.

• Both the supply of food and Earth's natural resources will decrease.

Tags

NGSS.MS-ESS3-4

This graph shows how the amount of meat the world eats has changed over time. Describe the trend that this graph shows.

• The supply of food is increasing

• Humans are eating more meat than ever before, so the supply of food will decrease.

• Humans are eating the same amount of meat as always, so the supply of food is going to increase

• The most popular type of meat is poultry, but the amount of chickens cannot support the human population in many countries.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-ESS3-4

This graph shows how the population in the United States has changed over time.

• The population has steadily decreased over time

• The population has steadily increased over time

• The population increased and then decreased

• The population decreased and then increased

Tags

NGSS.MS-ESS3-4

If the population of the United States increases, how might this affect the Earth's natural resources?

• We won't need as much food so there will be more natural resources

• We will need to use more natural resources to raise more animals for a larger food supply

• We will need to use more natural resources since we will not need as many animals

• The animals will overpopulate since no one will be eating them. This will cause a decrease in the amount of Earth's natural resources.

Tags

NGSS.MS-ESS3-4