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WorksheetsBJU Science 5 Chapter 8
Total questions: 22
Worksheet time: 11mins
A regular pattern of change is called a
cycle
root
seasons
evaporation
Nitrogen is important for living things to grow and function normally
False
True
Bacteria that can change nitrogen into compounds can be found in ________ nodules on plants.
STEM
DIRT
LEAF
ROOT
All stresses are man made.
True
False
Photosynthesis and respiration are part of the nitrogen cycle.
True
False
The water cycle includes all of these except...
precipitation
respiration
evaporation
condensation
People and animals breathe in oxygen and breathe out carbon dioxide during....
water cycle
traspiration
evaporation
respiration
Fires are never beneficial to an ecosystem
False
True
Consumers get nitrogen compounds by eating other animals or plants
True
False
What is released into the air during decomposition?
Carbon Dioxide
Oxygen
Nitrogen
Compounds
During respiration organisms use __________ molecules and oxygen to produce energy.
Sun
Sugar
Nitrogen
Carbon Dioxide
Plants release water vapor in the air by
respiration
transpiration
evaporation
condensation
Whenever an ecosystem receives less water that it needs, a ______ occurs.
storm
fire
drought
flood
Any physical hazard to life caused by having too much or too little of things needed for life is called a ______.
stress
disaster
cycle
monsoon
All of these are manmade stresses except.....
excessive hunting
pollution
habitat destruction
floods
The gradual changes in the populations of organisms in an ecosystem are called...
fire
drought
succession
floods
A native species is....
When the last- known member of a species dies.
Plant and animal species that originally live in an ecosystem
When the population of a species is so small.
Species that are not native to an ecosystem.
An invasive species is....
When the last- known member of a species dies.
Plant and animal species that originally live in an ecosystem
When the population of a species is so small.
Species that are not native to an ecosystem.
What is the function of the sun in the carbon cycle?
Sunlight provides energy for the plants to make food.
Sunlight provides heat for warmth.
Sunlight provides carbon dioxide into the air.
Sunlight provides oxygen to breathe.
What is the function of the plants in the carbon cycle?
Plants provide energy for the plants to make food.
Plants break down wastes.
Plants take in carbon dioxide and release oxygen.
Plants take in oxygen and release carbon dioxide.
What is the function of animals in the carbon cycle?
Animals provide energy for the plants to make food.
Animals break down wastes.
Animals take in carbon dioxide and release oxygen and waste into the soil.
Animals take in oxygen and release carbon dioxide into the air and waste into the soil.
What is the function of decomposers in the carbon cycle?
Decomposers provide energy for the plants to make food.
Decomposers break down wastes and the bodies of dead things, returning Carbon Dioxide into the environment.
Decomposers take in carbon dioxide and release oxygen and waste into the soil.
Decomposers take in oxygen and release carbon dioxide into the air and waste into the soil.
