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प्रश्न
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?
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उत्तर
(a) The following is the food chain that provides food to the lion in the given case:
Plants→Deer→Man → Lion
(b) The lion could have looked for a herbivore, such a wild buffalo or a zebra, if it he had not got the hunter as prey.
(c) Any top consumer, such as a tiger or a python, could have been in the place of the lion in the forest.
(d) In the food chain,
Plants→ Goat→ Man
man is the top consumer whereas, in the food chain,
Plants→ Deer→ Man→ Lion,
the top consumer is lion.
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संबंधित प्रश्न
In a food chain of frog, grass, insect and snake, assign trophic level to frog.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Draw the food chain with four trophic levels.
Write down a food chain with five links in it.
At which trophic level a person is feeding when he is eating apple.
Construct a short foodchain, ending with man.
Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
The decomposers in an ecosystem ______.
Which of the following group of organisms are not constituents of a food chain?
- grass, lion, rabbit, wolf
- plankton, man, fish, grasshopper
- wolf, grass, snake, tiger
- frog, snake, eagle, grass, grasshopper
In the figure given alongside, the various trophic levels are shown in the form of a pyramid. At which trophic level the maximum energy is available?
The following is a food chain that ends with human :
How does this food chain differ form a usual food chain involving human such as : plants → goat → human?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name two zooplanktons.
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name the organism which Y could be.
The ten per cent law is associated with
(a) transfer of energy from various trophic levels to decomposers in a food chain
(b) transfer of ATP energy into muscular energy
(c) transfer of chemical energy from one organism to another
(d) transfer of sun's energy to the organisms called producers.
What would happen if an organism is removed from the food chain?
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
Animals that eat both plants and animals are called as Carnivores.
Define – Heterotrophs.
In the following food chain, only 2J of energy was available to the peacocks. How much energy would have been present in Grass? Justify your answer.
GRASS → GRASS HOPPER → FROG → SNAKE → PEACOCK
Assertion (A): The energy which passes to the herbivores does not come back to autotrophs.
Reason (R): The flow of energy in a food chain is unidirectional.
