Give differences : Grazing food chain and Detritus chain

English

Gujarati

Hindi

12.Ecosystem

medium

Give differences : Grazing food chain and Detritus chain

Option A

Option B

Option C

Option D

Solution

Grazing food chain	Detritus chain
$(1)$ It begins always with green plants to fertiary consumers.	$(1)$ It starts from decomposers.
$(2)$ Green plants are first organisms which absorb solar energy.	$(2)$ Bacteria and fungi are found at its firs trophic level.
$(3)$ Rate of energy flow is less.	$(3)$ Rate of energy flow is more.
$(4)$ Large organisms regulate this chain.	$(4)$ Small organisms regulate this chain.

Standard 12

Biology

Share

Similar Questions

Assertion : In a food chain, members of successive higher levels are fewer in number.
Reason : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.

medium

(AIIMS-2017)

Source of energy in an ecosystem is

medium

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?

medium

When man eats fish which feeds onzooplanktons which have eaten small plants,the producer in this chain is

medium

(NEET-2013)

How many food chains are there in the food web shown above?

medium