When some foreign species of plants or animals are introduced to some place, they are termed Allien species and most often they are invasive Read More …
Category: Organisms and Population
In Ramu ‘s field , at Amona , small birds were often seen sitting on the backs of grazing cattle and pecking . Identify the type of interaction : a) Commensalism b) Mutualism c) Parasitism d) Predation
Mutualism.
Differentiate between an upright and inverted pyramid.
Upright pyramid 1. Producers are more in numbers than the herbivores and herbivores more in number than carnivores. 2. Pyramid of energy is Read More …
Large slum areas in a metropolitan city are the root cause of a tremendous increase in population. Being a responsible member of the society what measures would you like to take to reduce this problem.
We should tackle the problem at the village level by providing opportunities and amenities similar to those in a city so that the people Read More …
How was the invasive prickly pear cactus brought under control?
Biological control – Introducing a predator moth species feeding on cactus controlled the prickly pear cactus in Australia.