TERMS DEFINITIONS Community Community is composed of all populations living in an area. Dominant specie Species that determine community characteristics are called dominant species. Succession The process…
Any detrimental change in an ecosystem is called pollution. Human activities cause most kinds of pollution. There is a large human population. Their demands for good sand services are increasing.…
The human population is increasing ip the last few. hundred years. Humans are sing resources to provide need and wants for the growing population. But humans have lost the sense…
Terrestrial ecosystems can be divided into following main types: Temperate deciduous forest Coniferous alpine and boreal forests Tropical rain forests Grassland ecosystem Desert ecosystem Tundra ecosystem TEMPERATE DECIDUOUS FORESTS 1,…
The area where a freshwater stream or river merges with the ocean is called an estuary. It is composed of intertidal salt marshes. Salinity varies within estuaries from fresh water…
Marine ecosystems are found in the oceans. Marine environments are characterized by an average salt concentration of 3%. Oceans cover nearly three fourths of surface df the earth. There is…
The fresh water bodies in which water moves continuously in one direction are called streams and rivers. The head water of a stream is cold and clear. It carries little…
Fresh water lakes have variety of size, depth, and nutrient content. The have distinct life zones and temperature stratification. The distribution of life in lakes depends on light, nutrients and…
There are two types of ecosystems: 1. Aquatic or Hydrospheric ecosystem: It is system in which living components exchange material and transfer energy within water. Aquatic environment is classified into…
COMMUNITIES Community is composed of all populations living in an area. Communities are not random mixtures of species. They have a unique organization. Most communities have certain important members. These…
abida