Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Phytoplankton→ Larvae→ Fish→ Birds
APPEARS IN
संबंधित प्रश्न
In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?
Plants → Rats → Snakes → Hawks
What are planktons?
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
One of the following is a micro-consumer. This one is :
(a) ant
(b) lice
(c) fungi
(d) mosquito
The following is a food chain that ends with human :
Do you think that the food chain given in this question can really be regarded as a food chain? Explain your answer.
What would happen to the number of rabbits and grass plants if the number of foxes increased?
Name two predators of snakes in a food web operating in a forest ecosystem.
What is ten per cent law? Explain with an example.
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
Consider the following food chain
(i) Plants → Mice → Snakes → Hawks
(ii) Plants → Mice →Hawks
If energy available at the producer level in both the food chains is 100 J, in which case will hawks get more energy as food and by how much? Justify your answer.:
Explain why, a food chain usually cannot have more than three or four steps.
Calculate the amount of energy that will be available to big fish in the following food chain, if 10,000 J of energy is available to small algae from the sun :
Small algae → Zooplankton → Fish → Big fish
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
Primary consumers that eat plants are called _______.
In an ecosystem, herbivores represent ______.
Food chains are very important for the survival of most species.
If 10,000 J solar energy falls on green plants in a terrestrial ecosystem, what percentage of solar energy will be converted into food energy?
______ are organisms that are able to produce their own organic food.
Animals that eat both plants and animals are called as Carnivores.
