Advertisements
Advertisements
प्रश्न
Which one of the following has the largest population in a food chain?
विकल्प
Producers
Primary consumers
Secondary consumers
Decomposers
उत्तर
Decomposers
Explanation:
The detritus food chain (DFC) begins with dead organic matter. It comprises decomposers, which are heterotrophic organisms, mainly fungi and bacteria. Decomposers form the most significant population in a food chain and obtain nutrients by decomposing the remains of dead plants and animals.
APPEARS IN
संबंधित प्रश्न
Secondary producers are
Give an account of energy flow in an ecosystem.
Scientific term for the first formed category of photosynthetic organisms.
What is an ecosystem ? Name its two components .
State the functions of decomposers in an ecosystem.
Draw a simple diagram showing a food chain.
Describe the energy flow in an ecosystem.
State the law which governs the energy flow in an ecosystem.
Draw a simple diagram showing the energy flow in a food chain.
Draw a diagram to show that the energy flow in an ecosystem is governed by the law of conservation of energy.
What is biomagnification?
With the help of a diagram explain how wind energy is converted into electric energy.
What do you understand by the term hydroelectric power?
Explain the energy changes taking place in a hydroelectric dam?
What is the % of photosynthetically active radiation in the incident solar radiation?
If 20000 K Cal energy is available at the level of producers, what will be the amount of energy available at the level of secondary consumers.
Which one of the following types of organic occupy more them one trophic level in a pond ecosystem?
In the aquatic food chain, a major amount of energy flows through ______.
Read the following statements and select the correct ones:
- A given species may occupy more than one trophic level in the same ecosystem at the same time
- Productivity of an aquatic ecosystem is less than that of a terrestrial ecosystem
- Producers constitute of the first trophic level of a detritus food chain
Is the common edible mushroom an autotroph or a heterotroph?
Flow of energy through various trophic levels in an ecosystem is unidirectional and non cyclic. Explain.
In relation to energy transfer in ecosystem, explain the statement "10 kg of deer's meat is equivalent to 1 kg of lion's flesh".
Fill in the trophic levels (1, 2, 3 and 4) in the boxes provided in the figure.
What will happen to an ecosystem if all top carnivore population is removed?
A lot of waste is generated in neighborhood. However, almost all of it is biodegradable. What impact will it have on the environment or human health?
Complete the given chart:
| Trophic levels | Type of organisms | Status | Example |
| ______ | ______ | Secondary consumer | ______ |
| Second trophic level | Herbivore, Heterotrophs | _____ | ______ |
| ______ | ______ | ______ | Phytoplankton, grass, trees |
