Relationships in Ecosystems
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Easy
Mandy Mills
Used 3+ times
FREE Resource
8 Slides • 8 Questions
1
Relationships in
Ecosystems
2
Can you remember what an ecosystem is?
What are the two factors that make up an ecosystem?
3
Relationships in Ecosystems
Organisms in an ecosystem interact in different ways to survive. These interactions can be beneficial, harmful, or neutral.
Relationships help to keep ecosystems balanced
Every organism has a role that impacts others
4
Competition
Competition: When two or more organisms need the same resource (food, water, shelter), they must compete to survive.
Can you think of any examples of competition?
5
Predation
Predation: A predator hunts and eats its prey. This helps control population sizes and keeps the ecosystem balanced.
We are about to watch a video where one lizard has to run away from hundreds of snakes. Whose team are you on?
6
What happens when there's too many predators?
7
What happens when there's too many predators?
8
Mutualism
One benefits, the other is not affected.
Commensalism
One benefits, the other is harmed
Parasitism
Both animals benefit.
9
Hotspot
Click on the predator in the image.
10
Multiple Choice
Which of these is an example of competition?
Two kangaroos fighting over a waterhole
A crocodile eating a fish
A bird building a nest in a tree
A bee pollinating a flower
11
Multiple Choice
What type of relationship is it when an organism benefits while harming its host?
Mutualism
Commensalism
Parasitism
Predation
12
Fill in the Blanks
13
Categorize
A lion hunting a zebra
A mistletoe plant taking nutrients from a tree
A clownfish living in a sea anemone, both benefiting
Barnacles living on a whale without harming it
A tick sucking blood from a kangaroo
A cleaner fish removing parasites from a shark
An orchid growing on a tree branch without harming the tree
A crocodile eating a fish
A wasp laying its eggs inside a caterpillar, killing it
A bee collecting nectar from a flower while pollinating it
A remora fish hitching a ride on a shark
A fox hunting a possum
Sort the following relationships into the correct category:
14
Labelling
In this picture, label the predator and the prey.
Prey
Predator
15
Labelling
In this picture, label the predator and the prey.
Predator
Prey
16
Labelling
In this picture, label the predator and the prey.
Prey
Predator
Relationships in
Ecosystems
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