हिंदी

The Sea Water Contains Water Beetles, Tadpole, Fish and Weeds. Which Organism is a Secondary Consumer?

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प्रश्न

The sea water contains water beetles, tadpole, fish and weeds.

Which organism is a secondary consumer?

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उत्तर

The water beetle is the secondary consumer in the given food chain.

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अध्याय 5: Our Environment - Exercise 1 [पृष्ठ २३०]

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लखमीर सिंग Biology Part 3 [English] Class 10
अध्याय 5 Our Environment
Exercise 1 | Q 74.5 | पृष्ठ २३०

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संबंधित प्रश्न

State with reason any two possible consequences of elimination of decomposers from the Earth.


List two biotic components of a biosphere.


What is biological magnification?


In the following food chain, 100 J of energy is available to the lion. How much energy was available to the producer?

Plants → Deer → Lion


A food chain represents a unidirectional flow of X. What is X?


Fill in the following blank with suitable word :

A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............


Can the organisms of any trophic level be removed without causing any damage to the ecosystem? Will the impact of removing all the organisms in a trophic level be different for different trophic levels?


Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?


Write down a food chain with five links in it.


At which trophic level a person is feeding when he is eating eggs.


The sea water contains water beetles, tadpole, fish and weeds.

Which organisms can trap solar energy to make food?


Some hunters are roaming in the plush green forest of Africa. They spot a deer and kill it. They decide to roast the deer there and then and eat it. When the hunters had just finished enjoying the feast of roasted deer, a lion attacks them. The lion kills one of the hunters and eats his flesh.
(a) write a food chain which provides food to lion in this case.
(b) Which animal (other than deer) the lion could look for food if he did not get the hunter as prey?
(c) Which other animal in the forest could have been in place of lion?
(d) How does the above food chain differ form the food chain such as : plants → goat → man?


Fill in the following blank with suitable word :

Plants → Antelope → ............


'If we excessively use pesticides to protect the crops from diseases, then it may cause long-term  damage to mankind'. Justify this statement.


Which of the following limits the number of trophic levels in a food chain?
(a) insufficient food supply from producer level
(b) decrease in energy at higher trophic levels
(c) increase in the number of organisms at higher trophic levels
(d) accumulation of harmful chemicals at higher trophic levels


A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.

Write the food chain comprising all the organisms mentioned above.


Natural agents like ______ are the decomposition factors breaking complex forms into simpler units.


In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?

Grass → Grasshopper → Frog → Snake → Hawk


In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.

A food chain in a forest ecosystem


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