Cd

A manatee is a water-dwelling herbivore on the list of endangered species. If manatees were to become extinct, what would be the most likely result in areas where they had lived?

• Certain producer organisms would become more abundant in the area.
• Other manatees would move into the area and restore balance.
• Predators in the area would have more food to eat.
• The area would not be affected.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Scientists are concerned about overfishing of shark populations. Sharks feed on rays and rays feed on scallops. Without sharks, rays consume all the scallop beds. This situation demonstrates that: 

• humans can improve an ecosystem by removing predators.
• humans can upset an ecosystem by removing species.
• reducing the shark population increases the quantity of scallops that can be taken.
• sharks are not important for the stability of the ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-5

Which statement best explains how natural selection occurs?

• when adaptations help an organism reproduce and survive.
• when organisms are geographically isolated.
• when an organism’s offspring grow vestigial structures.
• when characteristics from the parent organism are inherited.

Tags

NGSS.MS-LS4-4

A change in temperature can affect an environment.

• True
• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

NGSS.MS-PS3-4

The population size that an environment can feed and support.

• Population
• Environment
• Carry capacity

Tags

NGSS.MS-LS2-4

All living things that belong to the same group and live in the same area:

• Carry capacity
• Population
• Organism

Overuse of chemical pesticides can cause damage to the soil.

• True
• False

Tags

NGSS.MS-LS1-5

Currently sharks are on a rapid decline due to overfishing. If sharks go extinct will this affect the biodiversity of the ocean?

• No, sharks are not important.
• No, sharks will only affect the seal populations.
• Yes, it will disrupt the entire food chain in the ocean.
• Yes, but only a little.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What will most likely happen if the human population continues to grow at current rates?

• There will be fewer natural resources available for future generations.
• There will be an increase in nitrogen levels in the atmosphere.
• There will be a decrease in water pollution.
• There will be an increase in the number of strong hurricanes

Tags

NGSS.MS-ESS3-4