The idea of food chain was introduced by which one of the following ecologist

At which lattitude, heat gain through insolation approximately equals heat loss through terrestrial radiation

One of the effects of dust is to cause

પરભક્ષણ, પરોપજીવન અને સહભોજીતા એ સામાન્ય લક્ષણોનું વિભાજન કરે છે, એટલે કે $.......$

The equilibrium of the species is disturbed by

The species of plants that play a vital role in controlling the relative abundance of other species in a community are called