Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word :
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............
Advertisements
उत्तर
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a food chain.
APPEARS IN
संबंधित प्रश्न
"Our food grains such as wheat and rice, the vegetables and fruits and even meat are found to contain varying amounts of pesticide residues." State the reason to explain how and why it happens?
What is biological magnification?
Fill in the following blank with suitable word :
In nature, all green plants are............ whereas animals are consumers.
What is meant by a primary consumer, secondary consumer and a tertiary consumer? Give one example of each.
What will happen if we kill all the organisms in one trophic level?
Can the organisms of any trophic level be removed without causing any damage to the ecosystem? Will the impact of removing all the organisms in a trophic level be different for different trophic levels?
At which trophic level a person is feeding when he is eating bread.
The decomposers in an ecosystem ______.
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
The following is a food chain that ends with human :
plants → bee → human
How do bees provide food for humans?
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
Will the levels of biological magnification be different at different levels of the ecosystem?
How much energy will be available to hawks in the food chain comprising hawk, snake, paddy and mice, if 10,000 J of energy is available to paddy from the sun?
The surface of 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 beetle, fish and tadpole. The sun shines over the lake water and provides energy for the functioning of this lake ecosystem.
(a) What could organisms X be?
(b) Write a food chain comprising of 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 the importance of the food chain.
What would happen if an organism is removed from the food chain?
We should reduce the use of the plastic bags, bottles etc. because ______.
The sequence of who eats whom in an ecosystem is called as ______.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
