Introduction to Ecosystem Structure

Q.

What is another name for Quaternary consumers?

Q.

explain how heterotrophic bacteria are decomposers

Q. Which one of the following is a characteristics feature of cropland ecosystem ?

1. Absence of soil organisms
2. Least genetic diversity
3. Absence of weeds
4. Ecological succession

Q. The dead remains of plants and animals are the major source of energy for ___.

1. Herbivores
2. Tertiary consumers
3. Saprotrophs
4. Autotrophs

Q. Choose the right option:
Decomposers like fungi and bacteria are ___.
i. autotrophs
ii. Heterotrophs
iii. saprotrophs
iv. chemoautotrophs

1. i and iii
2. I and iv
3. ii and iii
4. ii and i