ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Uses the Sun’s radiant energy to produce food
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The first step in any food chain diagram
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Eats only plants to gain needed energy
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Gains energy by eating other living things
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Detailed explanation-1: -In conclusion, the statement ‘gains energy by eating other living things’ is a characteristic shared by both primary and secondary consumers (Option D).
Detailed explanation-2: -The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers. The secondary consumers tend to be larger and fewer in number. This continues on, all the way up to the top of the food chain.
Detailed explanation-3: -As you can see, the primary consumer does not have all of the energy from the plant available to it. Only the green stored energy is available to the consumer. Thus, a primary consumer is going to be more efficient than a secondary consumer.
Detailed explanation-4: -Other consumers, called secondary consumers, get their energy by eating primary consumers. For example, a plant is a producer. It is eaten by a rabbit, which is a primary consumer. The rabbit is eaten by an eagle, which is a secondary consumer.