Unit 11 Ecology Question Preview (ID: 50121)


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Fish, their predators and the water, sunlight, and plants that they rely on would be considered a(n):
a) abiotic factor
b) population
c) community
d) ecosystem

Which of the following is NOT a characteristic of a living thing?
a) moves around
b) contains cells
c) uses energy for metabolism
d) reproduces

What is one biotic factor that affects the size of a population in an ecosystem?
a) local geography
b) average yearly temperature
c) number of predators present
d) average yearly precipitation

Organisms, such as plants or phytoplankton that carry out photosynthesis would cause a decrease of which gas in the atmosphere?
a) oxygen
b) carbon dioxide
c) water
d) ozone

Humans increase carbon dioxide in the atmosphere, and contribute to the carbon cycle by
a) combustion from driving cars
b) planting trees to improve photosynthesis
c) conserving energy with alternative energies
d) using more solar power electricity

Which biotic factor is required at all stages of the nitrogen cycle?
a) plants
b) bacteria
c) wind
d) lightning

When deforestation occurs in an area, what immediate effect does this have on the water cycle?
a) More water is returned to the atmosphere by transpiration.
b) There is less runoff water, but more transpiration.
c) More photosynthesis occurs and carbon dioxide begins decreasing.
d) Less is returned to the air by transpiration.

Which of the following is true of density-dependent limiting factors?
a) They have a larger impact on large density populations.
b) They have a larger impact on small density populations.
c) They impact large and small density populations equally.
d) They tend to be caused by abiotic factors.

What pattern of growth will a population with limited resources show?
a) exponential
b) density-dependent
c) logistic
d) density-independent

Conditions in the environment that impacts the size of the populations are called
a) limiting factors
b) populations
c) habitats
d) niches

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