Trophic Cascades and Keystone Species

A simple chain that shows the of the flow of energy (what eats what). It starts with the sun.

• trophic level

• trophic cascade

• food web

• food chain

Tags

NGSS.MS-LS2-3

An interconnected web of the flow of energy (and what eats what) through an ecosystem.

• trophic level

• trophic cascade

• food web

• food chain

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Each step or level in a food chain or food web.

• trophic level

• trophic cascade

• food web

• food chain

Tags

NGSS.MS-LS2-3

A side-effect when a certain species that usually helps to keep the entire ecosystem balanced is reduced or removed. When their numbers are changed there is an ecological imbalance.

• trophic level

• trophic cascade

• food web

• food chain

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

MULTIPLE CORRECT: Which of the following are true about a keystone species?

• Is the GLUE that holds an ecosystem together.

• If it is removed, it will impact the structure and biodiversity of a habitat/ecostyem.

• It has NO impact on other organisms in an ecosystem.

• There is only 1 keystone species in every ecosystem.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

An organisms that hunts other organisms.

• Predator

• Prey

• Predation

• Niche

An organism that is HUNTED by another organism.

• Predator

• Prey

• Predation

• Niche

Tags

NGSS.MS-LS2-2

The ACT of hunting another organism.

• Predator

• Prey

• Predation

• Niche

The role or job of an organism in an ecosystem.

• Predator

• Prey

• Predation

• Niche

A keystone species that is a critical food source for predator populations. For example, krill.

• keystone predator

• keystone prey

• keystone ecosystem engineer

• keystone plant

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4