When organisms survive and increase the number in next generation then which of the following explain it ?

When the algae in a polluted river die, the population of which of the following organisms increases ?

Discuss the effects of deforestation on the following. The next generation

Discuss the effects of deforestation on the following. The next generation.

Discuss the effects of deforestation on the following. The next generation

Name a few organisms which can survive in the absence of oxygen.

Due to which of the following organism, yield of rice is increased?

Which division help to maintain constant chromosome number in the next generation after sexual reproduction