Grazing Food Chain

Q.

Why is it important for a food web to occur?

Q. Which is the correct sequence in the food chain in grasslands?

1. Grass $\to$ wolf$\to$ deer$\to$ buffalo
2. Grass $\to$ insect $\to$ bird $\to$ snake
3. Grass $\to$ snake $\to$ insect $\to$ deer
4. Bacteria $\to$ grass $\to$ rabbit $\to$ wolf

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. None of these

Q. Regarding assertion and reason, choose the right option.

Assertion [A] : Food chains start with photosynthesis and ends with decomposition.

Reason [R]: In an ecosystem, plants produce food and decomposers help in decay of dead matter.

1. Both A and R are true and R explains A
2. Both A and R are false
3. Both A and R are true R does not explain A
4. A is true and R is false

Q. In an ecosystem decomposers, like fungi and bacteria

1. Complete the food chain
2. Initiate the food chain
3. Begin the food chain
4. Both a and b

Q. Which of the following can act as the top consumer in a grassland ecosystem?

1. Herbivores

2. Carnivores

3. Bacteria

4. Either carnivores or herbivores