Advertisements
Advertisements
प्रश्न
What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.
Advertisements
उत्तर
| First trophic level | Third trophic level |
| Producers belong to the first trophic level. | Carnivores belong to the third trophic level. |
| They prepare their own food by photosynthesis. | They consume the flesh of other animals. |
| Example: Green plants. |
Example: Lions.
|
APPEARS IN
संबंधित प्रश्न
The first trophic level in a food chain is always a green plant. Why ?
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?
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
What are planktons?
The following statement is true or false :
In biology, human beings are called producers.
Which category of organisms forms the starting point of a food chain?
Which of the following belong to the same trophic level?
Tree ; Frog ; Snake ; Grass ; Lizard
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
Construct a long food chain.
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
One of the following is not a consumer. This one is :
(a) giraffe
(b) antelope
(c) algae
(d) alligator
If a harmful chemical enters a food chain comprising cat, mice and plants, which one of these organisms is likely to have the maximum concentration of the harmful chemical in its body?
Name and state the law given by Lindeman which tells us how much energy entering a particular trophic level of organisms is available for trasnsfer to the next higher trophic level.
Which of the following gets the minimum energy through the food chain in an ecosystem?
(a) carnivore
(b) large carnivore
(c) producer
(d) herbivore
Arrange the following in a correct sequence and form a food chain
Rabbit → Carrot → Eagle → Snake
What are autotrophs?
Use of several pesticides which results in excessive accumulation of pesticides in rivers of ponds, is a matter of deep concern. Justify this statement.
Which organism in the food chain Grass → Insects → Thrush → Sparrow Hawk is classified as a tertiary consumer?
If a secondary consumer receives 100 units of energy from primary consumers, how much energy approximately originated from the producers?
