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WorksheetsNB#2
Total questions: 76
Worksheet time: 1hrs 2mins
What do omnivores eat?
Plants and Animals
Animals
Plants
Dead Animals
Which word best describes the non-living part of an ecosystem?
Birds
Abiotic
Ocean
Lava Flow
What is a carnivore?
An animal that makes its own energy through photosynthesis
An animal that gets energy by eating both plants and animals
An animal that gets energy by eating only plants
An animal that gets energy by eating other animals
Where do all life forms get their energy?
Earth's Core
Water
Plants
The Sun
What is a herbivore?
An animal that gets energy from eating other animals
An organism that gets energy from eating only plants
An animal that eats only herbs
An animal that gets energy by eating both plants and other animals
Examples of a producer include:
Frog
Algae
Worm
Mouse
Which part of the food chain makes it a cycle?
Water
Sunlight
Matter
Energy
What do decomposers do?
Store energy in the form of fat
Consume plants and animals
Break down dead organisms and organic waste
Produce energy from sunlight
How much energy is lost as organisms get eaten?
100%
90%
50%
10%
What is the primary source of energy for life on Earth?
The Sun
The Moon
The Ocean
Earth's Core
What are the levels of ecology from smallest to the largest?
individual, population, community, ecosystem, biosphere
individual, community, population, ecosystem, biosphere
individual, population, community, ecosystem, exosphere.
individual, community, population, ecosystem, exosphere
What is metabolism?
the sum of all chemical reactions that are used by an organism to maintain life.
the rate at which an organism grows in size.
refers to the movement of muscles during exercise.
is the process of breathing in oxygen.
What do organisms obtain from their food?
Energy and organic matter
Water and minerals
Vitamins and proteins
Oxygen and carbon dioxide
What is the primary role of decomposers in an ecosystem?
Store energy
Produce energy
Recycle nutrients
Consume producers
Why are food chains typically not very long?
Predators are too few
There are too many producers
Energy is lost at each trophic level
Decomposers consume all organisms
What percentage of energy is typically passed on to the next trophic level?
100%
90%
50%
10%
Which organisms are at the base of the food chain?
Secondary consumers
Producers
Primary consumers
Tertiary consumers
What is the role of arrows in a food chain diagram?
Point to the largest organism
Represent the speed of energy transfer
Indicate the size of organisms
Show the direction of energy flow
What is the 10% rule in ecology?
Only 10% of energy is transferred to the next level
10% of organisms are decomposers
10% of energy is lost as heat
10% of organisms are producers
Which of the following is a primary consumer?
Grasshopper
Eagle
Shark
Fungi
What is the main function of producers in an ecosystem?
Decompose organic matter
Consume other organisms
Convert sunlight into chemical energy
Store nutrients
Which of the following is an example of a tertiary consumer?
Eagle
Mushroom
Grass
Rabbit
What happens to energy that is not transferred to the next trophic level?
It is lost as heat
It is stored in the soil
It is converted to water
It is used to produce oxygen
Which of the following organisms can make their own food?
Fungi
Wolves
Rabbits
Plants
What is the role of fungi in an ecosystem?
Decomposers
Producers
Primary consumers
Tertiary consumers
Which part of the food chain is responsible for recycling matter?
Secondary consumers
Primary consumers
Producers
Decomposers
What is an apex predator?
An organism at the top of the food chain
A primary consumer
A producer
A decomposer
Which trophic level has the most amount of energy?
2nd level - primary consumers
3rd level - secondary consumers
4th level - tertiary consumers
1st level - producers
Which trophic level has the LEAST amount of energy?
2nd level - primary consumers
3rd level - secondary consumers
4th level - tertiary consumers
1st level - producers
What is this called?
Ecosystem
Food Web
Food Chain
Abiotic Factors
What is this called?
Ecosystem
Food Web
Food Chain
Abiotic Factors
What is this called?
Ecosystem
Food Web
Food Chain
Abiotic Factors
What does a Primary Consumer eat?
Decomposers
Producers
Secondary Consumers
Tertiary Consumers
How much energy is lost at every trophic level?
90%
20%
10%
80%
How much energy is transferred to each trophic level?
100%
90%
50%
10%
A food web is a model of interconnected food chains that shows all the feeding relationships in an ecosystem. Why are food webs more realistic than food chains?
They show only one type of food.
They show energy levels.
They show abiotic factors.
They show multiple types of food.
What is biodiversity?
The variety of life in an ecosystem
The number of producers in an ecosystem
The amount of energy in an ecosystem
The number of consumers in an ecosystem
What is a niche?
The number of species in an ecosystem
The energy flow in an ecosystem
The food chain in an ecosystem
The role a species plays in an ecosystem
What is mutualism?
One species benefits, the other is harmed
One species benefits, the other is unaffected
Both species benefit
Both species are harmed
What is commensalism?
Both species benefit
One species benefits, the other is unaffected
One species benefits, the other is harmed
Both species are harmed
What is parasitism?
Both species are harmed
Both species benefit
One species benefits, the other is unaffected
One species benefits, the other is harmed
Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish gets protection and shelter from the anemone.
This is an example of which type of symbiosis?
Commensalism
Mutualism
Ectoparasitism
Endoparasitism
Pg 5 & 6
What is a population?
A group of different species living together
A set of individuals of the same species living in the same place at the same time
A random assortment of organisms
A collection of ecosystems
Pg 5 & 6
If the number of births in a population is the same as the number of deaths, what will happen to the growth of the population?
Increase
Decrease
Fluctuate
Stay the same
Pg 5 & 6
Which of the following is a density-dependent limiting factor?
Climate change
Natural disasters
Human activities
Competition for limited resources
Pg 5 & 6
Which of the following is a density-independent limiting factor?
Parasitism
Disease
Predation
Natural disasters
Pg 5 & 6
What type of growth is represented by a J-curve pattern?
Logistic growth
Exponential growth
Linear growth
Cyclic growth
Pg 5 & 6
What happens to a population when it reaches carrying capacity?
It levels off
It becomes extinct
It decreases rapidly
It continues to grow exponentially
What would happen to the carrying capacity graph if there was a drought?
It would stay the same.
The carrying capacity would increase.
The carrying capacity would decrease.
The graph would become a straight line.
Pg 5 & 6
What is the term for when organisms move out of a population?
Abandonment
Migration
Emigration
Immigration
For a population's growth rate to be zero, what must be true?
The population must be made of older individuals.
There have to be more births than deaths.
The average birth and death rate must be the same.
There have to be more deaths than births.
Pg 5 & 6
What happens during the third phase of logistic growth?
Population levels off
Population explosion
Exponential Growth
Immigration
Which of these are density-dependent factors?
Human activity
Weather
Predation
Parasitism and disease
Pg 5 & 6
Exponential growth occurs when a population
Exceeds the carrying capacity.
Grows rapidly.
Breeds with another species.
Is competing for resources.
Pg 5 & 6
Any thing or organism that regulates the size of a population of another organism is known as __________.
A limiting measure
A limiting factor
Factorization
Materialization of precipitation
In this food web example you can see that rain forests have many producers consumer and predators. How would you describe the rain forest biome?
It has high biodiversity
It has low biodiversity.
