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WorksheetsSNC1W Food Webs
Total questions: 64
Worksheet time: 3610secs
Identify the producer in the food web
Grass
Grasshopper
Bird
Mouse
A producer is...
An organism that uses energy from the sun to create food
An organism that will consume another for energy
An organism that eats meat
An organism that only eats plants
Identify a primary consumer from the food web
Grasshopper
Owl
Fox
Grains
Identify all the secondary consumers from the food web (You can select multiple answers)
Birds
Owls
Mice
Foxes
Identify the Carnivore from the food web
Mice
Grasshopper
Rabbit
Owl
Identify the Herbivore from the food web
Owl
Fox
Rabbit
Bird
Identify the Omnivore from the food web
Mouse
Grasshopper
Bird
Carrot
In a food web what do the arrows show
What is being eaten
Who eats what
The transfer of energy
Heat Energy
What might happen if the amount of grasshoppers and mice were reduced
Fewer Owls
More Owls
Less Birds
More foxes
Which is the correct definition of a carnivore
An organism that consumes only plants
An organism that consumes only meat
An organism that consumes both plants and animals
Non of the above
Which is the correct definition of Herbivore
An organism that only eats plants
An organisms that only eats meat
An organism that eats both meat and plants
Non of the above
How much energy is usually passed from one organism to another in a food chain
50%
25%
15%
10%
The bacteria have a very important role in the food web. What do they classify as?
decomposers
omnivores
apex predators
primary producers
Review: which of the following lists the levels of biological organization in order from least to most complex?
individual, population, community, ecosystem, biosphere
individual, population, ecosystem, community, biosphere
population, individual, ecosystem, community, biosphere
biosphere, community, ecosystem, individual, population
an example of producer consumer relationship would be
The Mayfly is a food source for which 3 organisms?
The trout is a source of food for the human and the eagle. When there are more than one organism vying for the same source we call this____?
Animals that only eat producers (also known as herbivores)
Producers
Primary Consumers
Secondary Consumers
Tertiary Consumers
What is this called?
Food Web
Food Chain
Trophic Level
First trophic level of a ecological pyramid includes
producers
primary consumers
secondary consumers
tertiary consumers
How is a food web different from a food chain?
Foods webs contain only producers, not consumers.
Food webs do not include decomposers.
Food webs contain many different,linked food chains.
Food webs exist in aquatic environment;food chain exist in terrestrial environment
what role do you play in the food web?
producers
consumer
Decomposer
Human
How are primary consumers different from secondary consumers?
Primary consumers eat only plants;secondary consumers eat other consumers.
Primary consumers eat other consumers;secondary consumers eat only plants.
primary consumers eat plants and other consumer;secondary consumers eat plants and decompose matter
Primary consumers eat plants and decompose matter ;secondary consumers consumers eat plants and other consumers.
47-61.
Answer the questions below after watching the video
What typically featured in the nature shows the narrators watched as children?
Urban environments
Animated characters
Predator-prey interactions
Domestic animals
What is the initial source of energy in a food chain?
Secondary consumers
Plants
Sun
Primary consumers
Which organism begins the food chain?
Plant
Snake
Frog
Grasshopper
Which of the following is a tertiary consumer in the discussed food chain?
Frog
Plant
Snake
Grasshopper
How much energy is typically stored by primary consumers from producers?
30%
20%
40%
10%
What percentage of energy is transferred from primary to secondary consumers?
50%
25%
10%
75%
Which level of consumers only stores about 1% of the energy from producers?
Secondary
Tertiary
Quaternary
Primary
What is the main reason for energy loss between trophic levels in a food chain?
Water evaporation
Photosynthesis
Predation
Heat loss and undigested material
What happens if a primary consumer is removed from the food chain?
Nothing changes
More plants grow
Secondary consumers starve
Energy flow increases
What is the primary consequence of removing an apex predator from a food chain?
Immediate ecosystem collapse
Overpopulation of secondary consumers
Increased primary consumers
Decreased plant growth
What does a food web demonstrate that a food chain does not?
Single predator-prey relationships
Complex interactions among species
Energy loss as heat
Linear energy transfer
Why is biodiversity important for ecosystem resilience?
It reduces the number of species
It ensures faster energy flow
It provides more food options
It increases competition
What can lead to a decrease in biodiversity?
Stable climate conditions
Increased number of decomposers
Loss of habitat
All of the above
What is not a benefit of high biodiversity?
More stable ecosystems
Greater variety of species
Economic advantages
Reduced resilience to changes
What is the role of decomposers in an ecosystem?
They consume live plants
They produce energy
They break down dead matter
They capture solar energy
