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The study of food chains helps in understanding food relationships and interactions among the various organisms in an ecosystem. The food chains, transfer energy and materials between various living components of an ecosystem. The movement of toxic substances like pesticides, weedicides, etc., through food chains, can prove very harmful.

1. What role human plays in food chains?

a. Producers

b. Consumers

c. Humans do not involve in food chains

d. Decomposers

2. Why do all food chains start with plants?

a. Because plants are easily grown

b. Because plants are nutritious

c. Because plants can produce its own energy

d. Because plants do not require energy

3. Which of the following food chain correctly describes the flow of energy in an ecosystem?

a. Grass → lion → human

b. Cow → grass → lion

c. Grass → goat → human

d. Leaf → bird → lizard

4. If there is a shortage of deer in forest, what tiger might do?

a. Hunt for other animals

b. Eat grassland leaves

c. Die due to starvation

d. Fasting until they find deer

5. In the food relationship, where the tiger eats the deer and the deer eats plants. Which of the following conditions is true?

a. The tiger is the prey

b. The tiger is the primary consumer

c. The deer is the predator

d. The deer is the prey

1 Answer

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Best answer

1. b. Consumers

2. c. Because plants can produce its own energy

3. c. Grass → goat → human

4. a. Hunt for other animals

5. d. The deer is the prey

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