7,8-diol-9,10-epoxide is responsible for cancer development forms an adduct with guanine: 

(+)-trans-anti-B(a)P-N2-dG

TLS Online TPP Program

#Id: 5747

#Unit 10. Ecological Principles

The organisms which occur primarily or most abundantly in this zone are known as Edge species. Density of birds is greater in the ecotone between the forest and the desert.

TLS Online TPP Program

#Id: 5748

#Unit 10. Ecological Principles

Ecocline is a zone of gradual but continuous change from one ecosystem to another when there is no sharp boundary between the two in terms of species composition.

TLS Online TPP Program

#Id: 5749

#Unit 10. Ecological Principles

Controlling effect of species 

TLS Online TPP Program

#Id: 5750

#Unit 10. Ecological Principles

Dominant species - One that has a large effect in a community because of its abundance or large biomass.

TLS Online TPP Program

#Id: 5751

#Unit 10. Ecological Principles

Keystone species - Species within a community that has a role out of proportion to its abundance. Pisaster (starfish) preyed on a variety of intertidal organisms Beaver , Fig Tree, Digs

TLS Online TPP Program

#Id: 5752

#Unit 10. Ecological Principles