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प्रश्न
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
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उत्तर
Weeds can trap solar energy to make food.
संबंधित प्रश्न
Give reason to justify the following: The existence of decomposers is essential in a biosphere.
List two biotic components of a biosphere.
List two main components of ecosystem?
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
In the following food chain, 20,000 J of energy was available to the plants. How much energy would be available to man in this chain?
Plants → Sheep → Man
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
What is a food chain?
Give one example of a simple food chain.
In a food chain, the initial organism is usually :
(a) photosynthetic
(b) herbivore
(c) saprophytic
(d) parasitic
If a grasshopper is eaten by a frog, then the energy transfer will be from ______.
Name two predators of snakes in a food web operating in a forest ecosystem.
Explain how harmful chemicals enter our bodies.
Which common pesticide has accumulated in human body in considerable amounts?
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :
(a) cat
(b) plants
(c) dog
(d) seed-eating bird
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.
Which other organism you could write in place of bird in the above food chain?
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. |
______ are organisms that are able to produce their own organic food.
Define – Heterotrophs.
According to the 10% law, if producers in an ecosystem have 10,000 units of energy, approximately how much energy is available to primary consumers?
