Detritivorous Food Chains

Q.

Complete the following food chain:

Grass $\to$ Insects $\to$ Frog $\to$ ______ $\to$ Eagle

1. Cow

2. Snake

3. Caterpillar

4. Lion

Q.

In the food chain, which tropic level has the largest population?

Q. The man feeds on meat and then the tiger eats the man. The tiger belongs to the ________ of the food chain.

1. top level
2. first level
3. second level
4. third level

Q. Which of the following organism would be the correct option for the following food chains?

Grass $\to$ Rabbit $\to$ _____ $\to$ Hawk

Grass $\to$ Grass hopper $\to$ Frog $\to$ _____ $\to$ Hawk

1. Hen
2. Deer
3. Cow
4. Snake

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. They produce nutrients for autotrophs
4. In tropical rainforests more energy flows into this chain

Q. Detritus food chain involves sub soil organisms while grazing food chain ________.

1. involves macroscopic organisms
2. fixes inorganic nutrients to soil
3. begins with carnivores and ends with decomposers
4. begins with decomposers and ends with carnivores

Q. With respect to the given image identify I and II respectively.

1. I - Deer, II - Tiger
2. I - Grasshopper, II - Elephant
3. I - Cow, II - Lion
4. I - Jackal, II - Cow

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

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

Q.

The source of energy for decomposers is the dead and decaying matter in the environment.

1. True
2. False

Q. The source of energy for decomposers are the dead and decaying matter in the environment.

1. True
2. False

Q. What will happen if deer gets extinct in the food chain given below?
Grass $\to$ Deer $\to$ Tiger

1. The population of tiger increases.
2. The population of grass decreases.
3. The tiger will start eating grass.
4. The population of tiger decreases and the population of grass increases.

Q. Consider the given food chains and choose the correct option.

1. Shrubs $\to$ Deers $\to$ Wolves
2. Trees $\to$ Parrots $\to$ Lice and bugs
3. Dead trees $\to$ Earthworms $\to$ Hawks

1. Producers $\to$ Dead trees
   Primary consumers$\to$ Shrubs and trees
   Secondary consumers$\to$ Deers and parrots
   Parasites$\to$Lice and bugs
2. Producers $\to$ Dead trees
   Primary consumers $\to$ Lice and bugs
   Secondary consumers $\to$ Wolves and hawks
   Parasites $\to$ Earthworms and deers
3. Producers $\to$ Shrubs and trees
   Primary consumers $\to$ Deers and parrots
   Secondary consumers $\to$ Wolves and hawks
   Parasites$\to$ Lice and bugs
4. Producers $\to$ Earthworms
   Primary consumers $\to$ Wolves and hawks
   Secondary consumers $\to$ Lice and bugs
   Parasites $\to$ Deers and parrots

Q. Identify the type of food chain.

Dead animal →Blow fly maggots → Common frog → Snake

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