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 8
Describe the role of producers in a food web.
Describe what is meant by 'trophic level'.
Describe what would happen if all the producers in an ecosystem died.
Explain the difference between a food chain and a food web.
If 10,000 units of energy are available at the producer level, and only 10% of energy is transferred to each level, how much energy is available to the secondary consumer?
If a disease kills most of the rabbits in a grassland food web, what is likely to happen to the populations of grass and foxes?
In a forest ecosystem, if the population of deer increases greatly, what might happen to the plants and the predators of deer?
In a marine food web, which organism is most likely to be a producer? (1) Shark (2) Seaweed (3) Crab (4) Dolphin
In a marine food web, which organism is most likely to be a producer? (1) Shark (2) Seaweed (3) Crab (4) Dolphin
Which of the following best describes a food web? (1) A single line of energy flow (2) A network of interconnected food chains (3) Only producers and consumers (4) Only carnivores and herbivores
Which of the following best describes a secondary consumer? (1) Eats only plants (2) Eats primary consumers (3) Eats decomposers (4) Eats producers only
Which of the following is a correct order in a food chain? (1) Producer → Primary consumer → Secondary consumer (2) Secondary consumer → Producer → Primary consumer (3) Primary consumer → Producer → Secondary consumer (4) Producer → Secondary consumer → Primary consumer
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, energy is lost at each level mainly as __________.
Fill in the blank: The arrows in a food chain show the flow of __________.
True or False: All consumers are animals.
True or False: All food chains must start with a green plant or algae.
True or False: Carnivores can be both secondary and tertiary consumers.
True or False: Decomposers are not part of food webs.
