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1.
The rate of biomass production per unit area over a time period by plants during photosynthesis is called
2.
The decomposition rate is higher when detritus is rich in
3.
A man-made ecosystem is
4.
The green plants in an ecosystem which can trap solar energy to convert it into chemical bond energy are called
5.
Vegetable eating person acts as
6.
Consider the following statements about food chain
I. The transfer of energy from producers to top consumers through a series of organisms is called food chain
II. A food chain is always straight and proceeds in a progressive straight line
III. In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers
Which of the statements given above are correct?
I. The transfer of energy from producers to top consumers through a series of organisms is called food chain
II. A food chain is always straight and proceeds in a progressive straight line
III. In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers
Which of the statements given above are correct?
7.
Food chain consists of
8.
Consider the following ecosystem
I. Pond ecosystem
II. Terrestrial ecosystem
III. Oceans ecosystem
IV. Forest ecosystem
There are mainly three food chain in natural ecosystem’s grazing food chain, detritus food chain, parasite food chain
Find out which of the following will have grazing food chain?
I. Pond ecosystem
II. Terrestrial ecosystem
III. Oceans ecosystem
IV. Forest ecosystem
There are mainly three food chain in natural ecosystem’s grazing food chain, detritus food chain, parasite food chain
Find out which of the following will have grazing food chain?
9.
A much large fraction of energy flows in aquatic ecosystem through
10.
Consider the following statements concerning food chains.
I. Removal of 80% tigers from an area resulted in greatly increased growth of vegetation.
II. Removal of most of the carnivores resulted in an increased population of deers.
III. The length of food chains is generally limited to 3 to 4 trophic levels due to energy loss.
IV. The length of food chains may vary from 2 to 8 trophic levels.
Which two of the above statements are correct?
I. Removal of 80% tigers from an area resulted in greatly increased growth of vegetation.
II. Removal of most of the carnivores resulted in an increased population of deers.
III. The length of food chains is generally limited to 3 to 4 trophic levels due to energy loss.
IV. The length of food chains may vary from 2 to 8 trophic levels.
Which two of the above statements are correct?