Food Chains and Food Webs
Biology ⇒ Ecology and Environment
Food Chains and Food Webs starts at 6 and continues till grade 12.
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See sample questions for grade 6
Describe the difference between a food chain and a food web.
Describe what would happen if decomposers were removed from an ecosystem.
Explain why energy is lost at each step in a food chain.
Explain why food webs are more realistic than food chains in showing how energy moves in an ecosystem.
Explain why there are usually fewer top predators than producers in an ecosystem.
If a disease kills most of the rabbits in a grassland, what is likely to happen to the population of foxes that eat them?
What is a food chain?
If a disease kills most of the rabbits in a grassland, what is likely to happen to the population of foxes that eat them?
Which of the following best describes a carnivore?
(1) Eats only plants
(2) Eats only animals
(3) Eats both plants and animals
(4) Breaks down dead matter
Which of the following best describes a secondary consumer?
(1) Eats only plants
(2) Eats producers
(3) Eats primary consumers
(4) Breaks down dead matter
Which of the following is a correct order in a simple food chain?
(1) Grass → Rabbit → Fox
(2) Fox → Rabbit → Grass
(3) Rabbit → Grass → Fox
(4) Grass → Fox → Rabbit
Which of the following is a tertiary consumer in a food chain?
(1) Grass
(2) Grasshopper
(3) Frog
(4) Snake
Fill in the blank: Animals that eat both plants and animals are called __________.
Fill in the blank: Animals that eat only plants are called __________.
Fill in the blank: In a food chain, a lion is usually a __________ consumer.
Fill in the blank: In a food chain, the organism that eats the producer is called the __________ consumer.
True or False: A food web can exist without producers.
True or False: All animals in a food web are consumers.
True or False: All food chains start with the sun.
True or False: Decomposers are not important in a food web.
