Distinguish between

(a) Grazing food chain | vedclass

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Question

$(a)$ Grazing food chain and detritus food chain 


	
		
			Grazing food chain
			Detritus food chain 
		
		
			$1$. In this food c

Vedclass · Accepted Answer

Vedclass · Answer

$(a)$ Grazing food chain and detritus food chain 


	
		
			Grazing food chain
			Detritus food chain 
		
		
			$1$. In this food chain, energy is derived from the Sun.
			$1$. In this food chain, energy comes from organic matter (or detritus) generated in trophic levels of the grazing food chain.
		
		
			$2$. It begins with producers, present at the first trophic level. The plant biomass is then eaten by herbivores, which in turn are consumed by a variety of carnivores.
			$2$. It begins with detritus such as dead bodies of animals or fallen leaves, which are then eaten by decomposers or detritivores. These detritivores are in turn consumed by their predators.
		
		
			$3$. This food chain is usually large.
			$3$. It is usually smaller as compared to  the grazing food chain.
		
	


 $(b)$ Production and decomposition 


	
		
			Production
			Decomposition 
		
		
			$1$. It is the rate of producing organic matter (food) by producers.
			$1$. It is the process of breaking down of complex organic matter or biomass from the body of dead plants and animals with the help of decomposers into organic raw material such as $\mathrm{CO}_{2}, \mathrm{H}_{2} \mathrm{O},$ and other nutrients.
		
		
			$2$. It depends on the photosynthetic capacity of the producers.
			$2$. It occurs with the help of decomposers.
		
		
			$3$. Sunlight is required by plants for primary production.
			$3$. Sunlight is not required for decomposition by decomposers

Column $- I$	Column $- II$
$(a)$ Phytoplankton, grass	$(p)$ First trophic level
$(b)$ Man, Lion	$(q)$ Herbivore
$(c)$ Zooplankton, Cow, Grasshopper	$(r)$ Third trophic level
$(d)$ Birds, Wolf	$(s)$ Top carnivore

Distinguish between

$(a)$ Grazing food chain and detritus food chain

$(b)$ Production and decomposition

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Which of the following are consumers of second order

Match the following columns.

Column $- I$ Column $- II$

$(a)$ Phytoplankton, grass $(p)$ First trophic level

$(b)$ Man, Lion $(q)$ Herbivore

$(c)$ Zooplankton, Cow, Grasshopper $(r)$ Third trophic level

$(d)$ Birds, Wolf $(s)$ Top carnivore

Name any two organisms which can occupy more than one trophic level in an ecosystem.

Primary productivity depends on.........

Grazing food chain	Detritus food chain
$1$. In this food chain, energy is derived from the Sun.	$1$. In this food chain, energy comes from organic matter (or detritus) generated in trophic levels of the grazing food chain.
$2$. It begins with producers, present at the first trophic level. The plant biomass is then eaten by herbivores, which in turn are consumed by a variety of carnivores.	$2$. It begins with detritus such as dead bodies of animals or fallen leaves, which are then eaten by decomposers or detritivores. These detritivores are in turn consumed by their predators.
$3$. This food chain is usually large.	$3$. It is usually smaller as compared to the grazing food chain.

Production	Decomposition
$1$. It is the rate of producing organic matter (food) by producers.	$1$. It is the process of breaking down of complex organic matter or biomass from the body of dead plants and animals with the help of decomposers into organic raw material such as $\mathrm{CO}_{2}, \mathrm{H}_{2} \mathrm{O},$ and other nutrients.
$2$. It depends on the photosynthetic capacity of the producers.	$2$. It occurs with the help of decomposers.
$3$. Sunlight is required by plants for primary production.	$3$. Sunlight is not required for decomposition by decomposers

Distinguish between $(a)$ Grazing food chain and detritus food chain $(b)$ Production and decomposition