An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is :(a) water beetles (b) tadpoles (c) weeds (d) fish
Correct Answer: (d) fish
Explanation: As fish are in the top trophic level in an aquatic food chain, they get the minimum energy, according to the 10 per cent law.
Related Articles The sea water contains water beetles, tadpole, fish and weeds.(a) Write a food chain comprising all the given organisms.(b) Which organisms in the food chain are (i) herbivore, and (ii) carnivores?(c) Which organisms are (i) predators, and (ii) prey?(d) Which organisms can trap solar energy to make food?(e) Which organism is a secondary consumer?
A food chain consists of fish, larvae, phytoplankton, and birds. The level of pesticides in water in which the fish, larvae, and phytoplanktons live is quite high.(a) In which organisms the pesticides enter from the polluted water? What is this level of organisms known as?(b) Which organism will have the maximum amount of pesticides accumulated through the food chain? What is this process known as?(c) Write the food chain comprising all the organisms mentioned above.(d) Which other organism you could write in place of bird in the above food chain?
Most of the water surface of a lake is covered with algae. This algae is part of the food chain which also includes small fish, bird, larvae and big fish. Which of the following will obtain the maximum energy?(a) big fish (b) bird (c) larvae (d) small fish
Which of the following gets the minimum energy through the food chain in an ecosystem?(a) carnivore (b) large carnivore (c) producer (d) herbivore
Arrange the following in a food chain :Fish, Algae, Small animals, Big Fish
The surface of the water in a lake appears green due to a layer of tiny free-floating organisms X on its surface. The lake water also contains organisms like water beetles, fish, and tadpoles. The sun shines over the lake water and provides energy for the functioning of this lake ecosystem.(a) What could organism X be?(b) Write a food chain comprising all the four organisms mentioned.(c) What is the general name of the food chains like the one written above?(d) Name (i) secondary consumer (ii) producer (iii) tertiary consumer, and (iv) primary consumer, in the above food chain.(e) If the tertiary consumer gets 0.2 J of energy from the secondary consumer, then how much energy was radiated by the sun to the producer?
Write an aquatic food chain.
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :(a) cat (b) plants (c) dog (d) seed-eating bird
What provides the energy which then flows through a food chain?(a) glucose (b) oxygen (c) respiration (d) sunlight
(a) Explain why, a food chain usually cannot have more than three or four steps.(b) 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
In a food chain, the initial organism is usually :(a) photosynthetic (b) herbivore (c) saprophytic (d) parasitic
Which category of organisms forms the starting point of a food chain?
Why does the increased level of nutrients (or fertilizers) in the lake water affect the survival of aquatic organisms (like fish)?
Which of the following constitute a food chain?(a) Grass, wheat and mango(b) Grass, goat and human(c) Goat, cow and elephant(d) Grass, fish and goat
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain.
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