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प्रश्न
What are planktons?
उत्तर
The tiny herbivorous plants and animals present in water are known as plankton. Plankton are classified as phytoplankton (plants) and zooplankton (animals).
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संबंधित प्रश्न
List two important roles play in the environment by decomposers.
Which of the following constitute a food-chain?
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Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
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How does this food chain differ form a usual food chain involving human such as : plants → goat → human?
Calculate the amount of energy that will be available to big fish in the following food chain, if 10,000 J of energy is available to small algae from the sun :
Small algae → Zooplankton → Fish → Big fish
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Observe the food web and answer the questions given below:
Why do all food chains start with plants?
In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.
A food chain in a forest ecosystem
