SNC 1D QUIZ
Ecosystems
Name:
A. Multiple Choice. Fill in the blank to the left with the correct letter.
(14 Marks)
1. The maximum population of a species that can be supported by an area without causing
permanent damage to the environment is known as the:
a. keystone species b. maximum capacity c. carrying capacity d. ecosystem
2. Which of the following is abiotic:
a. Worms
b. Soil
c. Algae
d. Squid
3. This is when predators feed on other animals:
a. Predation
b. Competition
c. Parasitism
d. Mutualism
4. An example of this is the strain of E. coli bacteria in your intestines produces vitamin K,
while your body provides a home for the bacteria:
a. Predation
b. Competition
c. Parasitism
d. Mutualism
5. When one species benefits from an interaction and another is harmed:
a. Predation
b. Competition
c. Parasitism
d. Mutualism
6. When two or more individuals require the same resource:
a. Predation
b. Competition
c. Parasitism
d. Mutualism
7. What type of relationship exists between wolves and deer?
a. Predation
b. Competition
c. Parasitism
d. Mutualism
8. A pathway along which food is transferred from one organism to another is:
a. Food Web
b. Sunlight
c. Decomposers
d. Food Chain
9. A human eating a fish that contains toxins is an example of:
a. bioaccumulation b. Decomposer
c. Acid Rain
d. Limiting Energy
10. Photosynthesis does not require this to take place:
a. Sunlight
b. CO2
c. Glucose
d. Water
11. Cellular Respiration does not produce:
a. Water
b. Energy
d. CO2
c. Oxygen
12. Carbon is cycled from plants to animals in this form:
a. O2
b. Glucose
c. CO2
d. CO
13. During the water cycle, H2O is cycled between which two sphere's?
a. Hydro & Litho
b. Atmo & Litho
c. Hydro & Atmo
d. Milko & Atmo
B. True or False. Circle “T” for True and “F” for False.
(4 marks)
1. Plants and animals use N2 in its pure form.
T
F
2. We live in the hydrosphere.
T
F
3. Humans do not affect the water cycle.
T
F
4. Almost all energy for organisms comes from the Sun.
T
F
C. Short Answer. Answer the following question with complete sentences.
1. Please give a brief explanation of each sphere.
(4 marks)
2. Complete the following table.
(3 marks)
Year
Wolf
Population
Deer
Population
Deer
Offspring
Predation Starvation
1971
10
2,000
800
400
100
1972
12
920
480
240
1973
16
1,000
640
1974
22
944
880
180
1975
28
996
1,120
26
24
836
960
2
2,360
What would happen to the deer if there were no wolves? Why?
(3 marks)