Ecology Review
Presentation
•
Science
•
9th Grade
•
Easy
+2
Standards-aligned
Suzanne Green
Used 9+ times
FREE Resource
7 Slides • 7 Questions
1
Ecology Review
2
Symbiosis
+ +
+ -
+ o
3
Decomposers
Break down dead stuff
Return nutrients to the soil
4
Multiple Choice
Acacia ants and Acacia trees have a relationship where they both benefit. What is this?
population
parasitism
mutualism
species
5
Multiple Choice
What do decomposers return to the soil?
nutrients and organic matter
water
nitrogen
carbon
6
7
Multiple Choice
What is lost at each trophic level
mass
energy in the form of heat
matter
nothing
8
Multiple Choice
Can an organism have more than one roll in a food web?
Yes
No
9
Levels of Organization
Organism - one dog
Population- group of dogs
Community- a group of dogs, cats and horses living in an area.
Ecosystem- all the communities plus their abiotic factors
Biome- group of similar ecosystems
Biosphere- the Earth
10
Multiple Choice
A student observes a group of fairy shrimp, clam shrimp and tadpole shrimp in a small pond. What level of organization is this?
biosphere
community
ecosystem
population
11
Succession
Primary- begins in an area with no soil. Usually after a volcanic eruption
Secondary- begins in an area with soil after a natural disaster or disturbance
12
Multiple Choice
Which process is faster,
primary or secondary succession?
primary
secondary
13
Multiple Choice
Which type of succession will have greater diversity of species?
primary
secondary
14
Carbon & Nitrogen Cycle
Carbon sinks remove CO2
Usable form of nitrogen is nitrates
Terrestrial means land
Aquatic means water
Fertilizer = nitrates
Ecology Review
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