high school general biology

Animal Morphology..

Bio-piracy - Bio piracy refers to unauthorised and unlawful access to biological secret and use of such secrets for specific gain. In biological research many secrets have been unravelled. Genetic structures of potentially useful organisms, genetic structures..

The living cells contain specific macromolecules with a high molecular weight and a poor solubility. Generally in a cell, macromolecules are represented by polysaccharides, proteins, nucleic acids and enzymes. These compounds are formed by polymerisation of micromolecules such a..

Here, the inflorescence is highly reduced. It has a cup shaped receptacle formed by the fusion of five bracts. On the surface of this cup, generally a yellow coloured nectar secreting gland is present. A single female flower arises from the centre of the cup. It is hi..

In lower plants (and also protozoans) exchange of gases takes place through the general body surface as they are not highly modified or specialised. Also, the body surface allows the diffusion of gases. In higher plants the exchange of gases takes place through stomat..

Desirable plants are selected purely based on phenotype and pooled. They are allowed to be grown in mass in next generation. Further selections are made in 3-4 such generations to consolidate desirable characters by ignoring plants with undesirable character at each selection. Individual progeny is..

Introduction - The living cells contain specific macromolecules with a high molecular weight and a poor solubility. Generally in a cell, macromolecules are represented by polysaccharides, proteins, nucleic acids and enzymes. These compounds are formed by polymerisation of microm..

The living cells contain specific macromolecules with a high molecular weight and a poor solubility. Generally in a cell, macromolecules are represented by polysaccharides, proteins, nucleic acids and enzymes. These compounds are formed by polymerisation of micromolecules ..

It is defined as an inherent capacity of females to conceive and deliver babies in their reproductive life. It is also called as fecundity. This varies largely from individual to individual. It is usually studied on mean basis for the entire population. The study of biotic potential is useful to un..

High fever, headache, body ache, nausea and violent shivering (rigours) are some of the symptoms of malaria. Each malarial attack lasts for 6-10 hours and consists of the cold stage (shivering), hot stage (fever) and sweating stage (temperature goes down to normal). The fever is repeated..