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Question
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name one phytoplankton.
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Solution
Algae are phytoplankton.
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RELATED QUESTIONS
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Which of the following belong to the same trophic level?
Goat ; Spider ; Plants ; Hawk ; Rat
What will happen if we kill all the organisms in one trophic level?
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(a) giraffe
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One of the following is a micro-consumer. This one is :
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What would happen to the number of grass plants and foxes if the number of rabbits increased?
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
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Why are there rarely more than five links (or five organisms) in a food chain?
Consider the following food chain
(i) Plants → Mice → Snakes → Hawks
(ii) Plants → Mice →Hawks
If energy available at the producer level in both the food chains is 100 J, in which case will hawks get more energy as food and by how much? Justify your answer.:
The harmful chemical which is accumulating in human beings through food chain is :
(a) benzenehexachloride
(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
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Write the importance of the food chain.
The food chain begins with the energy given by the ______.
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
In the following food chain, only 2J of energy was available to the peacocks. How much energy would have been present in Grass? Justify your answer.
GRASS → GRASS HOPPER → FROG → SNAKE → PEACOCK
Assertion (A): The energy which passes to the herbivores does not come back to autotrophs.
Reason (R): The flow of energy in a food chain is unidirectional.
