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Ecological Relationships, Interactions and Interdependence
Presentation
•
Science
•
7th Grade
•
Medium
+7
Standards-aligned
Dana Wallach
Used 4+ times
FREE Resource
3 Slides • 9 Questions
1
Symbiotic Relationships
mutualism - both species benefit
commensalism - one species benefits and the other is neither harmed nor helped
parasitism - one species benefits and the other is harmed
competition - neither benefits, due to struggle among organisms for the same limited resources in an ecosystem
2
Match
Match the following
one species benefits and the other is neither harmed nor helped
neither benefits, due to struggle among organisms for the same limited resources in an ecosystem
both species benefit
one species benefits and the other is harmed
commensalism
competition
mutualism
parasitism
commensalism
competition
mutualism
parasitism
3
Multiple Choice
4
Multiple Choice
Woodpeckers and squirrels both live in holes and open spaces in trees.
5
Multiple Choice
competition
6
7
Multiple Choice
Select the best symbiotic relationship that these two organisms would express
mutualism
commensalism
parasitism
8
Multiple Choice
Select the best symbiotic relationship that these two organisms would express
mutualism
commensalism
parasitism
9
Predator - Prey
The predator prey relationship consists of the interactions between two species.
The words “predator” and “prey” describe the roles in a relationship between two species.
In this relationship, one species eats the other. The predator is the species that does the eating. The prey is the one that gets eaten.
10
Multiple Choice
Predator and prey populations are linked. For example, if the number of prey decreases, then the number of predators will ___________
increase
decrease
stay the same
11
Multiple Choice
In this food web, the owl, who is a predator receives energy from which organisms?
12
Match
Competition
Predator-Pray
Mutualism
A lion and a hyena pack fight over a fresh kill.
An anteater consuming the ants in an anthill
Bacteria in our gut that helps us digest food
A lion and a hyena pack fight over a fresh kill.
An anteater consuming the ants in an anthill
Bacteria in our gut that helps us digest food
Symbiotic Relationships
mutualism - both species benefit
commensalism - one species benefits and the other is neither harmed nor helped
parasitism - one species benefits and the other is harmed
competition - neither benefits, due to struggle among organisms for the same limited resources in an ecosystem
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