A hollow, sealed glass sphere contains sand, water, air, algae, and tiny brine shrimp. The sphere is a model ecosystem. Which of these is a biotic factor of this ecosystem?
a)
air
b)
algae
c)
sand
d)
water
2.
Which of these is a biotic factor in a river ecosystem?
a)
the types of microorganisms that live in the river water
b)
the amount of soil and other particles carried by the river
c)
the speed at which the river water flows toward the ocean
d)
the amount of rain that flows off the land and into the river
3.
In many desert ecosystems, days are hot and nights are cold. Water is scarce, so animals seek water wherever possible. The spines of a cactus are actually leaves adapted to conserve water. The cactus plants have also adapted to live in thin, sandy soil. Which of the following is a biotic component of a desert ecosystem?
a)
the thin, sandy soil
b)
the wide temperature range
c)
the scarcity of water
d)
the spiny cactus leaves
4.
Which of the following is a biotic factor in an ocean ecosystem?
a)
the salt content of the water
b)
the temperature of the water
c)
the fish in the water
d)
the oxygen in the water
5.
Temperature, light, air, water, and soil are all _____ parts of the environment
a)
alive
b)
biotic
c)
abiotic
d)
living
6.
Is a deer an abiotic or biotic factor?
a)
abiotic
b)
biotic
7.
Is a fern an abiotic or biotic factor?
a)
abiotic
b)
biotic
8.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
9.
Which of the following is not an abiotic factor?
a)
sun
b)
temperature
c)
soil
d)
grass
10.
A nonliving element in an ecosystem is an
a)
animal
b)
abiotic factor
c)
biotic factor
d)
organism
11.
What are the biotic factors in this image?
a)
sunlight, elephants, and grasses
b)
sunlight, water, and air
c)
elephants, plants, trees
12.
Brandon and his dad cut a tree that fell in a storm into smaller sections. Then they split the wood to use for firewood. Firewood is an example of which type of factor.
a)
Biotic
b)
Abiotic
13.
Carrying Capacity is
a)
The maximum number of individuals that can fit into an area
b)
An environment's ability to accommodate a growing population.
c)
The greatest population that an area can sustain.
d)
The maximum # of species that can co-exist in an area.
14.
Water lilies do not grow in the desert because water availability is:
a)
a limiting factor
b)
the carrying capacity
c)
a competition factor
d)
the logistic growth curve
15.
Is the following factor Biotic or Abiotic? Fallen Leaves
a)
Biotic
b)
Abiotic
แป้นคำตอบ
Biotic and Abiotic Factors in an Ecosystem
คำถามทั้งหมด: 15
1.
b)
algae
2.
a)
the types of microorganisms that live in the river water