Ecosystems (interrelationships)

Presentation

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Science

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8th Grade

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Practice Problem

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Medium

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NGSS

MS-LS2-1, MS-LS2-2, MS-LS2-4

Standards-aligned

Evie Locklear

Used 55+ times

FREE Resource

6 Slides • 5 Questions

Ecosystems (interrelationships)

Organisms are constantly interacting with each other both biotic and abiotic whether

Predator (hunts other organisms)
Prey (being hunted)
symbiosis (interaction between 2 different organisms)
Competition (need the same resources.. maybe be limited)
NICHE- the role of and organism in its environment

Mutualism(+,+) BOTH organisms benefit

Sea anemones and Clownfish
Flowers and Bees
https://www.youtube.com/watch?v=kjZyC_fry9s

Multiple Choice

In a mutualistic Relationship BOTH organisms are

benefitted

harmed

hungry

prey

Parasitism (-,+) one organism is benefited the other is harmed

ticks that live on dogs
viruses, Tape worms
https://www.youtube.com/watch?v=NFa8-Hagg9Y

Commensalism - one organism is benefited the other is not affected good or bad

Sharks and Remora Fish
Livestock And Cattle Egrets
https://www.youtube.com/watch?v=jBg59_8TXbM

https://www.youtube.com/watch?v=0UHMUIGhGNg

Multiple Choice

Kudzu vines grow by clmibing and warpping around trees. Trees covered by the Kudzu can die because they are starved of sunlight. What type of relationship exists between the trees and the kudzu growing on them?

competition

mutualism

parasitism

predator-prey

Multiple Choice

A parasite needs a _______ to survive

house

host

virus

niche

Multiple Choice

What happens to a population and to competition when there is a reduction in living space?

population expands and competition intensifies

competition strengthens while the population contract

the population increases as competition decreases

competition weakens and the population decreases

Multiple Choice

Wolves prey on deer for food, what most likely happen to the deer population if wolves are removed from an area where deer live

deer will increase

deer will decrease

deer will remain the same

deer will become extinct

Ecosystems (interrelationships)

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