Use the information on capture-recapture method to calculate the total number of organisms in a habitat.
First capture = 200
Second capture = 120
Number of organisms with mark in second capture = 40

The total number of organisms therefore is

Ecological investigation in a habitat includes the following procedures except

Which of the following substances when lost from the body of a mammal will not be returned to the ecosystem?

The rate of decomposition of organisms is faster in the tropical rain forest than in other biomes because

A xerophyte conserves water by possession of the following features except