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Ecology
Test Description: Ecology unit questions
Instructions: Answer all questions to get your test result.
1) Which of the following is an abiotic factor that most organisms need to survive?
A
Niche
B
Air
C
Grass
D
Rocks
2) Which of the following is a biotic factor?
A
A rotting log
B
Temperature
C
Sunlight
D
Water
3) Which level consist of the individuals of a given species in a specific area or region at a certain time?
A
Ecosystem
B
Biomes
C
Population
D
Species
4) Which of the following is an abiotic factor?
A
Bacteria
B
Oak tree
C
Grass
D
Soil
5) What is the type of organism that breaks down the cells of dead organisms?
A
Decomposer
B
Consumer
C
Omnivore
D
Producer
6) One or more communities in an area and the abiotic factors, including water, sunlight, oxygen, temperature, and soil in an ecosystem.
A
Ecosystem
B
Community
C
Species
D
Population
7) The individual living organism.
A
Population
B
Species
C
Biome
D
Ecosystem
8) All of the different populations in a specific area or region at a certain time.
A
Community
B
Population
C
Ecosystem
D
Species
9) What is the ability of water to pass through soil particles called?
A
Weathering
B
Permeability
C
Erosion
D
Acidity
10) Living or once living organisms in an environment are called ______________?
A
Abiotic Factors
B
Biotic Factors
11) Nonliving part of the environment is called ____________?
A
Abiotic Factors
B
Biotic Factors
12) A relationship that occurs when two or more organisms need the same resource at the same time.
A
symbiosis
B
parasitism
C
competition
D
Aluminum
13) A relationship that exist between organisms of two different species that live together in direct contact.
A
mutulalism
B
symbiosis
C
competition
14) Which organism is a decomposer?
A
Bacteria
B
Chipmunk
C
Pine tree
D
Ant
15) Which of the following is an example of a biotic factor?
A
Erosion
B
A dead frog
C
Soil
D
Sunlight
16) Which of the following is an ecosystem?
A
Living features in the environment
B
All the populations of species that live in the same habitat and interact with each other
C
An area where organisms live, or habitat
D
A community of organisms and their abiotic environment
17) A symbiotic relationship in which one organism (parasite) benefits at the expense of the other (host).
A
parasitism
B
commensalism
C
mutulalism
18) A symbiotic relationship in which both organisms benefit.
A
commensalism
B
mutualism
C
symbiosis
19) What is the organic material found in soil known as?
A
topsoil
B
parent material
C
humus
D
bedrock
20) There are 4 different types of soil material. What is the correct order in grain size from smallest to largest?
A
silt, clay, sand, gravel
B
clay, sand, silt, gravel
C
gravel, silt, clay, sand
D
clay, silt, sand, gravel
*select an answer for all questions
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