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Biology Review Week 8
Test Description: A quick review
Instructions: Answer all questions to get your test result.
1) The relationship between the fungi and cyanobacteria in lichen is best categorised as?
A
Friendship
B
Mutualism
C
The organism that breaks down rocks to create soil in a barren landscape
D
Predator-Prey
2) Bioaccumulation and biomagnification refers to
A
The use of microbes to clean up contaminated soil and groundwater
B
The accumulation of substances within an organism that decreases as you go up the food chain
C
A biological agent or condition that is a hazard to humans or the environment
D
The accumulation of substances within an organism that increases as you go up the food chain
3) A glacier melted and left behind bare rock, over time small plants started to grow, and eventually a forest resided where once there was nothing. This is an example of?
A
Family succession
B
Treetop succession
C
Secondary succession
D
Primary succession
4) Which process is the fastest?
A
Atmospheric formation
B
Primary Succession
C
Planet formation
D
Secondary Succession
5) Predators rarely kill off all of their prey. Which reason is not a correct justification for this statement?
A
Prey species often have refuges where the predators cannot reach them.
B
Prey species often evolve protective mechanisms such as camouflage, poisons, spines, or large size to deter predation.
C
Often the predator will switch its prey as the prey species becomes lower in abundance: prey switching.
D
Predators have less numbers and so are more likely to be hunted by humans and will go extinct first.
6) Which of the following is considered to be a part of the abiotic component of an ecosystem?
A
Plants
B
Carbon dioxide
C
Photosynthesis
D
Respiration
7) The best definition of an ecosystem would include a description of:
A
The total number of species in the system
B
The loss of matter from a system
C
The cycling of energy in the system
D
The living and non-living parts of the environment and their interactions
8) The amount of Carbon, Nitrogen and Phosphorous within the Biosphere
A
Has remained the same
B
Has been slowly increasing over time
C
Changes yearly depending on the weather
D
Has been slowly decreasing over time
9) In the nitrogen cycle, what is the best explanation for what lightning does?
A
Return nitrites to the atmosphere
B
Converts nitrogen gas to nitrates
C
Assist plants to take up the nitrogen fixing bacteria
D
Speeds up decomposition of dead organisms
10) A population of wolves started with a small pack of 15, during the harsh winter they lost three old wolves. In spring, six young cubs were born, four left to find their own packs and no one else joined. What is the current population?
A
21
B
14
C
7
D
15
11) The pioneer species refers to
A
A particular plant explorers wore for luck
B
The last species to establish in an area
C
The first species to establish in an area
D
A species that goes exploring
12) Name the process in the carbon cycle that follows this equation: C6H1206 + 6O2 = 6CO2 + 6H2O + energy
A
Chemosynthesis
B
Decomposition
C
Photosynthesis
D
Respiration
*select an answer for all questions
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