Detritus Food Chain

Q.

___ indicates who eats whom in an ecosystem.

1. Food pyramid

2. Biomass

3. Trophic level

4. Food chain

Q. From which of the following will the detritus food chain start?

1. Algae
2. Bacteria
3. Protozoa
4. Virus

Q.

The breakdown of detritus into smaller fragments by detritivores is called as

1. ​​​​​​Humification

2. ​​​​​​Mineralisation

3. Fragmentation

4. ​​​​​​Leaching

Q. Which one of the following processes during decomposition is correctly described?

1. Fragmentation - Carried out by organisms such as earthworm
2. Humification - Leads to the accumulation of a dark-colored substance humus which undergoes microbial action at a very fast rate
3. Catabolism - Last step in the decomposition under fully anaerobic condition
4. Leaching - Water soluble inorganic nutrients rise to the top layers of soil

Q. Identify the type of food chain.

Dead animal →Blow fly maggots → Common frog → Snake

1. Decomposer food chain

2. Detrital food chain

3. Grazing food chain

4. Predator food chain

Q. Which of the following is incorrect with respect to the detritus food chain?

1. Primary source of energy is the sun
2. It is composed of detritus-eating organisms
3. In tropical rainforests more energy flows into this chain
4. They produce nutrients for autotrophs

Q. From which of the following will the detritus food chain start?

1. Protozoa
2. Virus
3. Algae
4. Bacteria

Q. Identify the type of food chain.

Dead animal →Blow fly maggots → Common frog → Snake

1. Aquatic food chain
2. Detritus food chain
3. Grazing food chain
4. Predator food chain

Q. food chain begins from dead and decaying matter. food chain starts with producers.

1. Grazing
2. Detritus
3. Producer
4. Consumer

Q.

The breakdown of detritus into smaller fragments by detritivores is called as

1. ​​​​​​Leaching

2. ​​​​​​Mineralisation

3. Fragmentation

4. ​​​​​​Humification