Predator vs Prey / Competition / Mutually Beneficial in an Ecosystem

What factors will cause a change in an ecosystem's structure?

• Number of organisms competing for the same food source

• Amount of food sources available

• Amount of space given in an ecosystem

• All of the above would cause a change in the structure of an ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a forest community, an introduced bird species enters the ecosystem and hunts for the same fish as another species. This would be an example of an increase in ________ among the bird species.

• abiotic factors

• competition

• space

• food supply

Tags

NGSS.MS-LS2-1

A wolf hunts for deer in an ecosystem. Identify the correct relationship below.

• Both organisms are producers.

• Both organisms are scavengers.

• Wolf is the prey and the deer is the predator.

• Wolf is the predator and the deer is the prey.

Tags

NGSS.MS-LS2-2

In the food chain, "sun - grass - grasshopper - frog - snake," what would happen to the population if the grass all died?

• The frog population would decrease.

• The frog population would stay the same.

• The frog population would increase.

• The grasshopper population would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Two populations with limited resources experience ____________________.

• predation

• parasitism

• competition

• mutually beneficial relationships

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The clownfish lives among the tentacles of tropical sea anemones. The stinging tentacles of the anemone protect the clownfish from predators. The mucus on the fish protects it from the tentacles. In turn, the anemone is provided food from the predators that approach the anemone to eat the clownfish. What type of relationship does this example describe?

• Mutually beneficial

• Predator & Prey

• Consumer & Producer

• Competition

Tags

NGSS.MS-LS2-2

Which one of the characteristics of living things is involved when a rabbit eats plants?

• adapting to environment

• reproduction

• gas exchange

• use energy

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which of the following populations begins the flow of energy through a forest food web?

• birds

• grass

• squirrels

• frog

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Identify the example of a decomposer

• bacteria

• mushroom

• worm

• all of the organisms are decomposers

A robin eats a worm. The worm would be an example of

• prey

• predator

• herbivore

• scavenger

Tags

NGSS.MS-LS2-4