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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
Rocks
B
Grass
C
Niche
D
Air
2) Which of the following is a biotic factor?
A
A rotting log
B
Sunlight
C
Water
D
Temperature
3) Which level consist of the individuals of a given species in a specific area or region at a certain time?
A
Population
B
Species
C
Ecosystem
D
Biomes
4) Which of the following is an abiotic factor?
A
Bacteria
B
Oak tree
C
Soil
D
Grass
5) What is the type of organism that breaks down the cells of dead organisms?
A
Producer
B
Decomposer
C
Consumer
D
Omnivore
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
Population
C
Community
D
Species
7) The individual living organism.
A
Ecosystem
B
Population
C
Species
D
Biome
8) All of the different populations in a specific area or region at a certain time.
A
Species
B
Community
C
Population
D
Ecosystem
9) What is the ability of water to pass through soil particles called?
A
Weathering
B
Acidity
C
Permeability
D
Erosion
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
parasitism
B
competition
C
Aluminum
D
symbiosis
13) A relationship that exist between organisms of two different species that live together in direct contact.
A
competition
B
symbiosis
C
mutulalism
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
Sunlight
C
Soil
D
A dead frog
16) Which of the following is an ecosystem?
A
Living features in the environment
B
An area where organisms live, or habitat
C
All the populations of species that live in the same habitat and interact with each other
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
mutulalism
B
parasitism
C
commensalism
18) A symbiotic relationship in which both organisms benefit.
A
mutualism
B
commensalism
C
symbiosis
19) What is the organic material found in soil known as?
A
humus
B
parent material
C
topsoil
D
bedrock
20) There are 4 different types of soil material. What is the correct order in grain size from smallest to largest?
A
gravel, silt, clay, sand
B
clay, sand, silt, gravel
C
clay, silt, sand, gravel
D
silt, clay, sand, gravel
*select an answer for all questions
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