Types of species
Species can be classified in many different ways. One species classification system may categorise species into Typological, evolutionary, and phylogenetic species.
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Biodiversity and its Importance
Biodiversity and other sources supply raw materials to many important industries. They have aesthetic value and appeal for ecotourism, which supports the growth of the national economy. They are also potential sources of pharmaceuticals, other chemicals, agricultural materials, etc.
Animals : domestic and wild
Animals can be categorized mainly into two categories- domestic, and wild. However, the domestic animals that live under wild conditions are called Feral Animals.
Modes of Reproduction
Two organisms- male and female are essential for sexual reproduction. Now let us study some basic methods of reproduction in single organisms.
Evidences of evolution of life
Studies and researches that are done in different fields from time to time show increasing complexities in organisms than their ancestors. These studies and evidences show many important evidences of organic evolution.
Adoption of Zero Deforestation Policies by corporations and markets
It is said that corporations can destroy the world’s intact forests. They have also the Power to help save them. They can make an impact by introducing zero- deforestation policies. These policies require suppliers to produce commodities such as timber, beef, palm oil, and fibres for paper in such a way that has a minimal impact on natural forests and climate. These can also introduce paper procurement policies that set ambitious targets to maximise the use of post-consumer recycled wood, pulp, paper and fibre in their products and ensure that any virgin fibre used is certified by a rigorous third-party certification system.
Terrestrial Ecosystems and Their Components
The biosphere is itself a vast ecosystem which incorporates all the small ecosystems. But, the biosphere may have different types of physical conditions, communities of plants and animals, and climatic conditions in its different zones.
Origin and Characteristics of a Family
The early man started his life as an individual. Gradually he came in contact with his fellows and he started developing a social life. At any period of human life it is hard to understand that a man ever remained in isolation. Thus this hypothesis does not cover the whole thing.
Play as work and a way to Social Negotiations
Many people are working longer and harder, thinking that this will solve the problem of an ever-increasing workload. But they are still falling behind, becoming chronically overwhelmed, and burning out.
Habitat Destruction
Nearly half of the planet’s plant and animal species live in Rainforests. Less than 2.5 billion acres of Tropical Forest have remained out of four billion acres on the Earth within a few hundred years.
Direct causes of the loss of biodiversity
Species become endangered due to both natural and anthropogenic causes. Since man has no control over natural causes, we should consider anthropogenic causes only. Anthropological causes may be classified into two fundamental categories: Direct Causes and Indirect or underlying causes.
Nervous System of Animals
Most of the animals have a network of very fine filamentous or threadlike structures which exchanges information. These structures are called as nerves.
