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प्रश्न
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
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उत्तर
Yes. Depending on the trophic level, various organisms will be affected differently if all of them are eliminated. For instance, eliminating all of the producers (T1) will negatively impact both herbivores and carnivores as well as all other consumer types, whereas eliminating all of the herbivores will negatively impact only the carnivores while increasing the number of producers.
No. The removal of any organism at any trophic level will always have a negative impact on the ecosystem. For example, eliminating tigers and lions, two of the top carnivores will quickly increase the number of deer, which will then quickly consume the available vegetation, leading to a shortage of vegetation and a deer population crash.
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संबंधित प्रश्न
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
What is biological magnification?
What are planktons?
Which category of organisms forms the starting point of a food chain?
Which organisms belong to third and fourth trophic levels in the food chain comprising the following?
Rats, Plants, Hawk, Snakes
Define decomposers.
Draw the food chain with four trophic levels.
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?
Write down a food chain with five links in it.
At which trophic level a person is feeding when he is eating eggs.
A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part she saw a water beetle holding a tadpole in its jaws.
(a) Construct a food chain for the pond.
(b) How many links are there in this chain?
What would happen to the number of rabbits and grass plants if the number of foxes decreased?
Name two predators of snakes in a food web operating in a forest ecosystem.
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J
"Energy flow in food chains is always unidirectional". Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body.
Give some examples for Biodegradable and Non-biodegradable waste.
| S. No. | Biodegradable waste | Non-biodegradable waste |
| 1. | Food Waste | Plastic Bottles |
| 2. | ||
| 3. | ||
| 4. | ||
| 5. |
______ obtained energy from the chemical breakdown of dead organisms.
Which of the following statements is correct?
Which of the following organisms occupies the role of a producer in a food chain?
