Worksheets7th Grade CP8 Review
Total questions: 19
Worksheet time: 29mins
Name
Class
Date
1.
A __________ includes all living and non-living things in an environment.
a)
population
b)
niche
c)
abitotic
d)
ecosystem
2.
Which organism make their own food through the process of photosynthesis?
a)
decomposer
b)
consumer
c)
herbivore
d)
producer
3.
How does energy enter an ecosystem?
a)
sunlight
b)
soil
c)
animals
d)
invasive species
4.
All the members of one species that live within an area of an ecosystem
a)
population
b)
community
c)
niche
5.
Nonliving things found in an ecosystem.
a)
factories
b)
factor trees
c)
biotic factors
d)
abiotic factors
6.
What is formed during primary succession that doesn't need to be formed during secondary succession?
a)
pioneer species
b)
soil
c)
climax community
d)
lichens
7.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
eutrophication
c)
secondary succession
d)
intermediate
8.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
9.
Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?
a)
A tornado
b)
A volcanic eruption
c)
A flood
d)
A drought
10.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
11.
Which term means variety of life?
a)
Diversity
b)
Biodiversity
c)
Heterodiversity
d)
Homodiversity
12.
When an ecosystem is more diverse it is more likely to survive change.
a)
False
b)
True
13.
Which biome is more biodiverse?
a)
Desert
b)
Deciduous Forest
c)
Tundra
d)
Rainforest
14.
Which biome is more likely to survive a change in the environment?
a)
High (rich) biodiversity
b)
Low (poor) biodiversity
15.
An ecosystem with a lot of biodiversity is considered
a)
stable
b)
unstable
c)
unbalanced
d)
incomplete
16.
the atmopshere
a)
biotic
b)
abiotic
17.
water and sunlight
a)
biotic
b)
abiotic
18.
plants and animals
a)
biotic
b)
abiotic
19.
Which is true of a pioneer species?
a)
The first plants to grow in an area.
b)
The first animals to move into a new area.
c)
Only occur in areas devastated by fires.
d)
The last organisms to grow in an area.
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