Which must be preserved in an ecosystem, if the system is to be maintained
Which must be preserved in an ecosystem, if the system is to be maintained
- A
Producers and carnivores
- B
Producers and decomposers
- C
Carnivores and decomposers
- D
Herbivores and carnivores
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In the phosphorus cycle, phosphate becomes available by weathering of rocks first to
In the phosphorus cycle, phosphate becomes available by weathering of rocks first to
In an ecosystem
In an ecosystem
- [AIEEE 2004]
Which of the food chains directly depends on solar radiations
Which of the food chains directly depends on solar radiations
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?
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?
Trees $\rightarrow$ Birds $\rightarrow$ Lice $\rightarrow$ Bacteria. Thus food chain is
Trees $\rightarrow$ Birds $\rightarrow$ Lice $\rightarrow$ Bacteria. Thus food chain is