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Cycles In Nature And Interactions In Ecosystems
Test Description: A review to assess current knowledge about cycles in nature and interactions in ecosystems.
Instructions: Answer all questions to get your test result.
1) What abiotic factor is responsible for providing almost all the energy for life on earth?
A
soil
B
sunlight
C
water
D
air
2) Why can matter cycle through the biosphere?
A
matter is assembled into chemical compounds.
B
biological systems do not use up matter, they transform it.
C
matter does not change into new compounds.
D
biological systems use only carbon, oxygen, hydrogen, and nitrogen
3) The water cycle describes
A
the eventual loss of all water from the earth.
B
when we can expect heavy rains and floods.
C
the continuous natural recycling of water on the earth.
D
why three-fourths of the earth’s surface is covered by water.
4) When water vapor cools into a liquid, it’s called
A
transpiration.
B
precipitation.
C
evaporation.
D
condensation.
5) The two major processes in the carbon cycle are…
A
Photosynthesis and Respiration
B
Combustion and Photosynthesis
C
Weathering and respiration
D
Evaporation and Condensation
6) What organisms remove carbon dioxide gas from the air during photosynthesis?
A
consumers
B
herbivores
C
producers
D
decomposers
7) Animals get their source of nitrogen
A
from the water they drink
B
from nitrates in the soil.
C
from their food.
D
directly from the atmosphere.
8) What is the most common way that nitrogen fixation occurs?
A
lightning
B
fossil fuel combustion
C
forest fires
D
nitrogen fixing bacteria
9) A food chain shows ________.
A
what foods are most nutritious for an organism
B
how energy from food passes from one organism to another
C
how matter on Earth is recycled
D
how energy passes from the sun to organisms
10) Which of the following describes an organism's niche?
A
the physical location where it lives
B
the abiotic factors that affect it.
C
its role in an ecosystem
D
the food the organism eats
11) Which of the following is an example of predation?
A
None of the choices are correct.
B
a yucca plant and a yucca moth have a partnership in which both benefit
C
A wolf kills and eats an elk.
D
a tapeworm lives in the intestines of a human; the tapeworm doesn't kill the human.
12) Which of the following might be a limiting factor for a population of rabbits?
A
water
B
potential mates
C
Food
D
All of the choices are correct.
13) Groups of populations that interact with each other in a given area form a ______.
A
community
B
niche
C
habitat
D
biosphere
14) Abiotic factors include ______.
A
communities
B
air, light temperature
C
populations
D
trees, flowers, shrubs
*select an answer for all questions
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