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DIAGNOSTIC TEST
ECOLOGY TERMS
Multiple Choice Questions
1. The study of the interrelationships
of living organisms and their
environment is:
A. ecology
B. ecosystem
C. environment
2. All the living and non-living
conditions that act on an organism
and affect its chances of survival is
the:
A. ecology
B. living factor
C. environment
3. Another term meaning ‘living’ is:
A. biology
B. biotic
C. ecological
4. Another term for ‘non-living’ is:
A. abiotic
B. biotic
C. dead
5. All the organisms in a particular
area at a given time is the:
A. community
B. species
C. habitat
6. The number of a particular species
in an area at a given time is the:
A. community
B. species
C. population
7. The area in which an organism
lives is its:
A. range
B. habitat
C. nesting site
8. Another term for ‘on land’ is:
A. aquatic
B. terrestrial
C. marine
9. The role or position a species
occupies in a community is its:
A. niche
B. habitat
C. micro-habitat
10. A natural unit of living and nonliving parts that interact to produce
a stable system in which the
exchange of materials between
living and non-living parts follows
a circular path is called:
A. a cycle
B. an ecosystem
C. an environment
True-False Questions
11. Photosynthesis is the process used
by plants to take in oxygen and
sugar and produce energy.
12. All living and non-living things on
earth are interrelated.
13. Respiration is the opposite of
photosynthesis.
14. Abiotic factors include amount of
water and oxygen, temperature,
amount of sunlight and water
pressure.
15. Biotic factors include other animals
but not bacteria.
Short Answer Questions
16. What abiotic factors would affect
marine fish?
17. What biotic factors would affect
marine fish?
18. How are plants affected by
sunlight?
19. What is the difference between the
terms ‘aquatic’, ‘freshwater’ and
‘marine’?
20. List the factors that would affect
the population of a species.
DIAGNOSTIC TEST
ECOLOGY TERMS
ANSWERS
1.A 2.C 3.B 4.A 5.A 6.C 7.B 8.B
9.A 10.B
11.F 12.T 13.F 14.T 15.F
16. movement depth pressure
temperature salinity and viscosity
of the seawater, amount of
dissolved oxygen and carbon
dioxide, amount of light
penetration
17. amount of food, predators,
parasites
18. The duration and intensity of
sunlight affects the process of
photosynthesis in all plants.
Extreme heat would also affect the
transpiration or water loss of
plants. The number of hours of
darkness in each 24 hour period
affects the flowering time of many
flowering plants.
19. Aquatic = in water, Freshwater =
freshwater (low dissolved salt),
Marine = seawater (high dissolved
salt)
20. Available resources (food, water,
shelter), activities of other
organisms (predators, diseasecausing parasites), the organism’s
own characteristics (gestation
period, number of young), time of
day or year (nocturnal or diurnal,
migratory), weather (amount of
rain, cyclone)