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प्रश्न
Fill in the following blank with suitable word :
Grass → ........... → Human
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उत्तर
Grass → Goat → Human
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संबंधित प्रश्न
"Energy flow in a food chain is unidirectional" Justify this statement.
List two biotic components of a biosphere.
Explain how the pesticides enter a food chain and subsequently get into our body.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
Name one decomposer.
What will happen if we kill all the organisms in one trophic level?
Write down a food chain which ends with humans.
At which trophic level a person is feeding when he is eating bread.
What is a 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 ______.
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms are (i) predators, and (ii) prey?
What would happen to the number of rabbits and grass plants if the number of foxes increased?
Fill in the following blank with suitable word :
Plants → Antelope → ............
What is ten per cent law? Explain with an example.
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
If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J
Your mother always thought that fruit juices are very healthy for everyone. One day she read in the newspaper that some brands of fruit juices in the market have been found to contain certain level of pesticides in them. She got worried as pesticides are injurious to our health.
(a) How would you explain to your mother about fruit juices getting contaminated with pesticides?
(b) It is said that when these harmful pesticides enter our body as well as in the bodies of other organisms they get accumulated and beyond a limit cause harm and damage to our organs. Name the phenomenon and write about it.
In an ecosystem, herbivores represent ______.
______ are organisms that are able to produce their own organic food.
