Ecology Terms Quiz

1. The study of the interrelationships of living organisms and their environment is:
A ecosystem
B environment
C ecology

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 ecological
C biotic

4. Another term for 'non-living' is:
A biotic
B dead
C abiotic

5. All the organisms in a particular area at a given time is the:
A species
B community
C habitat

6. The number of a particular species in an area at a given time is the:
A community
B population
C species

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 marine
C terrestrial

9. The role or position a species occupies in a community is its:
Ahabitat
Bniche
Cmicro-habitat

10. A natural unit of living and non-living parts that interacts to produce a stable system in which the exchange of materials between living and non-living parts follows a circular path is called:
Aa cycle
Ban environment
Can ecosystem

11. Photosynthesis is the process used by plants to:
Aproduce carbon dioxide
Bproduce oxygen
Ctake in nitrogen dioxide

12. Aquatic abiotic factors include:
Anumber of marine predators
Bamount of algae for food
Cwater temperature and pressure

13. What aspects of sunlight affect plants?
ATurbidity and salinity
BDuration and intensity
CGeotropism and intensity

14. What is the difference between the terms 'freshwater' and 'marine'?
AFreshwater = seawater; Marine = lake water
BFreshwater = stationary; Marine = moving
CFreshwater = low dissolved salt; Marine = high dissolved salt

15. Two factors that affect the population of a species are:
Aavailable resources (food, water, shelter)
Bactivities of other organisms (predators, disease-causing parasites)
Cboth of the above