Which category of organisms forms the starting point of a food chain?
Producers form the starting point of a food chain.
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- 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?
- Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the :(a) ecosystem (b) food web (c) ecological pyramid b> (d) food chain
- 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
- What is the meaning of food chain?
- Write the common food chain of a pond ecosystem.
- Which organisms belong to third and fourth trophic levels in the food chain comprising the following? Rats, Plants, Hawk, Snakes
- Why are there rarely more than five links (or five organisms) in a food chain?
- (a) What is a food chain? Give one example of a simple food chain.(b) What is a ‘food web’? Show its formation.
- Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain.
- Grazing Food Chain
- Construct (a) a long food chain, and (b) a short food chain, ending with man.
- What are the organisms which preapare their own food called ?
- If a harmful chemical enters a food chain comprising cat, mice and plants, which one of these organisms is likely to have the maximum concentration of the harmful chemical in its body?
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