WorksheetsNC Life Science
Total questions: 15
Worksheet time: 15mins
Which will most likely happen to Questors as a result of Wood Plaxers migrating to their habitat?
The Questors will compete with the Wood Plaxers for food resources.
The Questors will be forced to fly to a different habitat.
The two species will become extinct.
The two species will coexist with no competition.
What happens to most of the energy as it moves throughout a food web?
It is changed into light energy.
It is changed into heat energy.
It is changed into mass.
It is changed into decomposers.
Why are digestion and respiration important to the body?
They control the production of hormones in the body.
They build muscle and bone that the body needs.
They store food for the body.
They help provide the energy needed for body functions.
Which best describes a method of obtaining energy that may cause changes in water temperature and harm to fish populations?
burning coal
using ethanol in cars
installing solar panels on a home
generating electricity in a hydroelectric power plant
Which are most responsible for creating acid rain pollution?
nuclear power plants
coal-burning power plants
hydroelectric power plants
wood-burning power plants
Which is most likely a major concern associated with burning fossil fuels?
Burning fossil fuels can pollute the oceans.
Burning fossil fuels can remove harmful chemicals from precipitation.
Burning fossil fuels can remove carbon dioxide from the atmosphere.
Burning fossil fuels can produce smog, which can cause respiratory illnesses.
Which action shows concern for the environment with regards to the resources of the oceans?
developing technology which will allow for an increase in fish harvesting.
allowing factories to release untreated wastewater into the oceans
filling in oceanfront wetlands in order to extend beachfront properties
setting limits on fish harvesting in the oceans
Which would indicate the water in a lake is not safe for drinking?
many varieties of fish in the lake
high dissolved-oxygen levels in the lake
cold water temperature of the lake
high turbidity levels in the lake
If a lake has excess levels of phosphates and nitrates in its water, what will most likely result?
The temperature of the lake water will decrease.
The turbidity levels of the lake will decrease.
The dissolved-oxygen levels in the lake will increase.
The growth of algae in the lake will increase.
What effect does the water cycle have on the total amount of water on Earth?
The total amount of water on Earth is constantly increasing.
The total amount of water on Earth is constantly decreasing.
The total amount of water on Earth remains relatively constant.
The total amount of water on Earth changes due to periods of global warming and cooling.
Which characteristic of water quality provides the most information regarding the health of a water system?
clarity
temperature
concentration of heavy metals
presence of indicator species
Where is most of Earth’s freshwater located?
in the clouds
in the ice caps
in the ocean
in the ground
What is the primary function of chlorophyll in plants?
A) To absorb water from the soil
B) To absorb sunlight for photosynthesis
C) To provide structural support to the plant
D) To transport nutrients throughout the plant
Which process is responsible for the conversion of atmospheric nitrogen into a form usable by plants?
A) Photosynthesis
B) Nitrogen fixation
C) Respiration
D) Transpiration
What is the role of decomposers in an ecosystem?
A) To produce energy through photosynthesis
B) To break down dead organisms and recycle nutrients
C) To compete with herbivores for food
D) To provide shelter for small animals
