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Grade 6 Ecology Unit Review
Test Description: Review for end of the unit assessment.
Instructions: Answer all questions to get your test result.
1) Which statement BEST describes the carrying capacity of an area?
A
The largest population an area can support.
B
The small population an area can support.
C
The total population an area can support.
D
The average population an area can support.
2) Which is a carnivore?
A
bear
B
deer
C
grass
D
spider
3) Which of the following roles do bacteria and fungi play in an ecosystem?
A
decomposer
B
producer
C
consumer
D
scavenger
4) The level of an energy pyramid with the least energy available is
A
producers
B
third-level consumers
C
second-level consumers
D
first-level consumers
5) The first organism in a food chain is always a(n)
A
decomposer
B
consumer
C
producer
D
scavenger
6) The interaction of all of the different populations is a(n)
A
organism
B
community
C
population
D
environment
7) The source of all energy for a food web is
A
the sun
B
a producer
C
a consumer
D
a scavenger
8) As you move up the energy pyramid, the amount of available energy
A
is destroyed
B
remains the same
C
increases
D
decreases
9) A group of owls living in the same area and competing for resources is called a
A
habitat
B
species
C
population
D
community
10) Which factor would most directly impact the frog population in a pond ecosystem?
A
amount of sunlight
B
rabbit population
C
deer population
D
dragonfly population
11) Which of the following is not a limiting factor for populations?
A
space
B
weather
C
water
D
time
12) Which of the following are biotic factors in an ecosystem?
A
plants, animals, and bacteria
B
rain, sunlight, and plants
C
animals, minerals in the soil, and rain
D
temperature, animals, and plants
13) 2. What is the difference between a biotic factor and an abiotic factor?
A
Biotic factors exist in an ecosystem, but abiotic factors do not.
B
Biotic factors are living things and abiotic factors are non-living things.
C
Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen
D
Biotic factors are non-living things and abiotic factors are living things.
14) Ecology is
A
the study of all living things except humans
B
the study of how living things interact with each other and their environment
C
protecting the environment
D
the study of pollution
15) Which level of the pyramid supports the least number of organisms
A
third-level consumers
B
second-level consumers
C
producers
D
first-level consumers
16) Where do plants get the energy from to make food?
A
producers
B
animals
C
sun
D
metamorphosis
17) Which of the following is an example of an abiotic factor?
A
animals
B
temperature
C
bacteria
D
plants
18) Which statement best explains why populations will decrease once they have gone over carrying capacity?
A
resources in an area are unlimited and do not limit the growth of a population
B
over time, the animals can not adapt to changes in their environment
C
the animals in the population are over-hunted by predators
D
Resources such as food, water, and shelter limit the growth of a population
19) What important role do decomposers provide for the ecosystem?
A
Decomposers consume the sun's energy
B
Decomposers break down materials that can be used by other organisms
C
Decomposers have no specific role in the ecosystem
D
Decomposers turn sun energy into food energy
20) Fish are an example of which factor in a pond environment
A
biome
B
abiotic
C
biotic
D
producer
*select an answer for all questions
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