Ch. 8 Sec. 2 Notes
Presentation
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Biology
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9th - 12th Grade
•
Practice Problem
•
Easy
+2
Standards-aligned
Tracey Lohr
Used 1+ times
FREE Resource
19 Slides • 22 Questions
1
2
Multiple Choice
Why is it important to understand how species interact with each other in an ecosystem?
It helps us predict weather patterns
It allows us to understand ecosystem stability and biodiversity
It is only useful for studying plants
It makes it easier to find new species
3
4
Open Ended
Explain the difference between an organism's niche and its habitat, and why understanding this distinction is important in ecology.
5
6
Multiple Choice
Which of the following best describes symbiosis?
A relationship where two different organisms live in close association and at least one benefits.
A relationship where only one organism benefits and the other is always harmed.
A relationship where organisms compete for resources.
A relationship where organisms never interact.
7
8
Open Ended
List and briefly describe the five major types of species interactions.
9
10
Multiple Choice
Which types of species interactions result in both species benefiting?
Mutualism
Competition
Predation
Commensalism
11
12
Fill in the Blanks
These categories are based on whether each species causes
Type answer...
13
14
Open Ended
Explain how niche overlap leads to competition between species. Use examples from the images to support your answer.
15
16
Fill in the Blanks
Indirect competitors are species that compete for the same food source but do not
Type answer...
17
18
Multiple Choice
Which adaptation helps species reduce competition when their niches overlap?
Dividing up the niche in time or space
Increasing competition
Expanding their niche
Ignoring other species
19
20
Open Ended
Explain how niche restriction can affect the distribution of closely related species within a habitat.
21
22
Multiple Choice
Based on the diagram, what happens to the niche size of Chthamalus stellatus when competition is present?
It increases
It decreases
It stays the same
It disappears
23
24
Multiple Select
Which of the following are mechanisms organisms have evolved to avoid or defend against predators?
Camouflage
Warning coloration
Mimicry
All of the above
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26
Fill in the Blanks
The population sizes of the lynx and snowshoe hare tend to increase and decrease in
Type answer...
27
28
Open Ended
Describe the relationship between a parasite and its host, and provide two examples of parasites.
29
30
Fill in the Blanks
A parasite spends some of its life ___ or ___ the host.
Type answer...
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32
33
Multiple Select
Which of the following are examples of mutualistic relationships?
Bacteria in human intestines
Remoras and sharks
Parasites and hosts
Bees and flowers
34
Open Ended
Explain how mutualism differs from parasitism and commensalism. Use examples from the slides to support your answer.
35
Multiple Choice
Which type of symbiotic relationship involves one organism benefiting while the other is unaffected?
Parasitism
Mutualism
Commensalism
Competition
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38
Open Ended
What is symbiosis?
39
Open Ended
What is the difference between a niche and a habitat?
40
Open Ended
Reflecting on today's lesson, what questions do you still have about how species interact with each other in their environments?
41
Multiple Choice
How is a niche different from a habitat in an ecosystem?
A niche is a location, while a habitat is a role.
A niche is an organism's pattern of use of its habitat, while a habitat is a location.
A niche is a type of species, while a habitat is a community.
A niche is the physical environment, while a habitat is the job of a species.
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