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Ecology/Environmental: The Strickland Challenge Test 2
Test Description: Populations, communities, symbiosis, succession and food webs
Instructions: Answer all questions to get your test result.
1) Which of the following would most likely lead to an increase in field mouse population?
A
the presence of a greater number of predator snakes
B
the disappearance of a species of bird that preys on the mouse
C
the arrival of another species that eats the same thing as the field mouse
D
the lack of adequate rainfall for plants in the mouse's habitat
2) Which of the following would explain why human population is growing rapidly?
A
Immigration and birth rates are increasing
B
Emigration is rising while immigration is declining
C
The birth rate is declining while the death rate is increasing
D
Emigration and death rates are increasing
3) Ticks carry bacteria that cause lyme disease. TIcks do not get the disease, but they can transfer the bacteria to humans who can get the disease. What is the relationship among the humans, bacteria, and ticks...
A
bacteria and ticks is commensalism, ticks and humans is parasitism
B
bacteria and tick is competition, ticks and humans is predation
C
bacteria and ticks is commensalism, ticks and humans is predation
D
bacteria and ticks is competition, ticks and humans is parasitism
4) Two wild stallions fighting over an available mare is an example of
A
interspecific competition
B
parasitism
C
intraspecific competition
D
predation
5) In an area two species of lizards compete for the same food. One stays within a few meters of the ground to search for insects while one lives among the higher branches in the trees. What is this an example of:
A
parasitism
B
intraspecific competition
C
density independent factor
D
resource partitioning
6) Lions prides are fairly spaced throughout an ecosystem due to their territorial nature. This is an example of what type of population distribution:
A
uniform
B
clumped
C
linear
D
random
7) A glacier melts and reveals a previously uninhabited layer of rock. Which type of succession would take place?
A
habitat fragmention
B
primary succession
C
tertiary succession
D
secondary succession
8) Tornadoes and Hurricanes wiping out entire populations of species would be considered to be:
A
exponential factors
B
density dependent factors
C
density independent factors
D
examples of tertiary succession
9) In which of the following ways do producers in an ecosystem obtain energy?
A
by living parasiticallly on animals
B
by using sunlight to make sugars
C
by consuming other producers
D
be decomposing dead organisms
10) Which of the following correctly compares primary and secondary succession:
A
Primary succession ends with higher biodiversity than secondary succession
B
primary succession takes longer because soil must be created
C
secondary succession takes longer because the soil is extremely damaged
D
only secondary succession will ever reach a climax community
*select an answer for all questions
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