Life Science: Ecology, Book E

Chapter 2: The Nonliving Environment

The Nonliving Environment

1.
Consumers are organisms that cannot __________.
A)evaporate
B)survive
C)photosynthesize
D)reproduce
2.
A puddle is formed after a rainstorm. After two days of sunshine, the puddle disappears. What happened to the water?
A)It evaporated.
B)It became a biotic factor.
C)It oxidized.
D)It went through chemosynthesis.
3.
Where would you find organisms that produce food by chemosynthesis?
A)in deciduous rain forest biomes
B)in a deep part of the ocean
C)in desert biomes
D)in treetops
4.
Which of these is an abiotic factor?
A)a pine tree
B)sunlight
C)a raccoon
D)a beetle
5.
Grass uses photosynthesis to produce __________.
A)evaporation
B)fewer offspring
C)sugar molecules
D)water
6.
Which of these is the correct order of a food chain?
A)A rabbit is eaten by grass, which is eaten by a wolf.
B)A rabbit is eaten by a wolf, which is eaten by grass.
C)A wolf is eaten by grass, which is eaten by a rabbit.
D)Grass is eaten by a rabbit, which is eaten by a wolf.
7.
One possible result of extra carbon dioxide in the atmosphere is __________.
A)a decrease in the amount of nitrogen in the soil
B)a decrease in the amount of water on Earth
C)a rise in average temperatures on Earth
D)an increase in the number of carnivores on Earth
8.
What is created when colder air sinks below warmer air and pushes warmer air upward?
A)omnivores
B)air currents
C)humus
D)precipitation
9.
Which of these can add nitrogen to the soil?
A)plastic
B)paper
C)glass
D)compost
10.
Which of these makes its own food?
A)carnivores
B)producers
C)water
D)soil
11.
The air that surrounds Earth is called __________.
A)the atmosphere
B)respiration
C)the core
D)humus
12.
Non-living physical features of the environment are called ________.
A)carbon cycles
B)abiotic factors
C)food chains
D)biotic factors
13.
Features of the environment that are alive now or once were alive are called __________.
A)biotic factors
B)abiotic factors
C)nitrogen cycles
D)food webs
14.
An ecosystem with plenty of __________ tends to be able to support a larger number of living organisms.
A)bacteria
B)herbivores
C)humans
D)water
15.
Trees at higher elevations usually are __________ than those at sea level.
A)affected more by high temperatures
B)taller
C)shorter
D)filled with more fruit
16.
Which of these is part of the nitrogen cycle?
A)Nitrogen is absorbed by plants when they die.
B)Nitrogen goes from the atmosphere to the soil.
C)Nitrogen is removed from soil by animal wastes.
D)Nitrogen is produced by living organisms.
17.
DNA in organisms is formed by ___________.
A)acid-base reactions
B)biotic factors
C)nucleic acids
D)hydrochloric acid
18.
The process that is almost the reverse of photosynthesis is __________.
A)fertilization
B)metamorphosis
C)migration
D)respiration
19.
Which of these affects the temperature of a region?
A)photosynthesis
B)the amount of humus in the soil
C)latitude
D)the number of carnivores
20.
Which group makes up the largest level of an energy pyramid?
A)omnivores
B)consumers
C)carnivores
D)producers