Define ecological niche.

Define ecology.

Ecological niche is

Define ecological density.

What is ecological niche.

Define ecological factors.

Define ecological pyramids and describe with examples, pyramids of number and biomass.

Identify the correct statements from the below i. Catla, Rohu and Mrigal occupy different ecological niches. ii. According to Jordon, in some aquatic environments, lower the temperature, more the vertebrae. iii. Euglena shows phototropism. iv Grasslands are a major source for the logging industry.

Identify the wrong statement from the below. i. Catla, Rohu and Mrigal occupy different ecological niches. ii. According to Jordon, in some aquatic enviroments, Lower the temperature, more the vertebrae. iii. Euglena shows phototropism. iv. Grassland are a major source of logging industry.

Define a ecological pyramid.