Advertisements
Advertisements
प्रश्न
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.
उत्तर
Y could be a big fish.
APPEARS IN
संबंधित प्रश्न
What will happen if we kill all the organisms in one trophic level?
What are planktons?
Write an aquatic food chain.
Define decomposers.
Which of the following statement is incorrect?
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
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. |
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.
Study the picture given below showing three food chains (a), (b) and (c) and answer the following questions:
- Name the type of ecosystems that exist in food chains (b) and (c).
- The first trophic level in all food chains is producers. Why? What percentage of solar energy do these producers capture for their use?
- Why are the arrows shown in the diagram in one direction only and not vice versa? Justify.