Advertisements
Advertisements
प्रश्न
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
Advertisements
उत्तर
fungi
Fungi are micro-consumers, which consume micro-producers.
APPEARS IN
संबंधित प्रश्न
We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
The following statement is true or false :
In biology, human beings are called producers.
Write a common food chain of a pond ecosystem having four links.
Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called ______.
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
The sea water contains water beetles, tadpole, fish and weeds.
Write a food chain comprising all the given organisms.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
What could be X?
Match the terms given in column I with the terms given in column II and column III having the same meaning :
| Column I | Column II | Column III |
| (1) Secondary consumer | Herbivore | 1st trophic level |
| (2) Primary consume | Autotroph | 3rd trophic level |
| (3) Producer | Carnivore | 4th trophic level |
| (4) Tertiary consumer | Large carnivore | 2nd trophic level |
If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?
Plants → Goat → Lion
'If we excessively use pesticides to protect the crops from diseases, then it may cause long-term damage to mankind'. Justify this statement.
Which common pesticide has accumulated in human body in considerable amounts?
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.:
What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
Which of the following gets the minimum energy through the food chain in an ecosystem?
(a) carnivore
(b) large carnivore
(c) producer
(d) herbivore
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?
The process of accumulation of harmful chemical substances like pesticides, in the body of living organisms at each trophic level of a food chain is known as ______.
Which of the following is a logical sequence of food chain?
______ obtained energy from the chemical breakdown of dead organisms.
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.
