generalization and specialization

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 highly reduced an..

The bride was seated in a decorated palanquin. The bride was generally a delicate young girl dressed in very special attire. Four able men were chosen to bear her palanquin. It was a privilege to be chosen as a palanquin bear..

Sometimes, a particular term satisfying certain conditions is required in the binomial expansion of the type (a + b) n . This can be done by expanding (a + b) n and then locating the required term. Generally this becomes a tedious task, specially when the index n is large..

Stem Modifications - Generally, the stems are aerial and grow above the soil surface. Sometimes, the stem becomes variously modified to perform special functions like perennation, vegetative propagation and food storage. The modified stems may be grouped under three heads viz, u..

Particular Terms for Positive Integral Index - Sometimes, a particular term satisfying certain conditions is required in the binomial expansion of the type (a + b) n . This can be done by expanding (a + b) n and then locating the required term. Generally this becomes a tedious task, ..

Palanquin Bearers - This is one of the most rhythmic and picturesque poems of Sarojini Naidu. The poem is a description of one of the customs of ancient India. The bride was seated in a decorated palanquin. The bride was generally a delicate young girl dressed in very special at..

Ecological Adaptations - Mesophytes - These are land plants which grow in moist habitats and need well aerated soils. They prefer soil and air with moderate humidity. They avoid soils with standing water and soils containing great abundance of salts. They have some special features. Root ..

The units of nervous system are specialized cells called the neurons . The general structure of a neuron is as follows: Around the cell body are short sensory projections called the dendrons. The fine branches of dendrons are called the dendrites. These short fibres receive mess..

Flowers are the reproductive structures in angiosperms. Each flower is a modified shoot adapted for purposes of reproduction. Flowers may occur either singly or in clusters. When clustered, the flowers are generally arranged on branches, which are quite distinct from the vegetative branch..

An isothermal process is a constant-temperature process. For a process to be isothermal, any heat flow into or out of the system must occur slowly enough so that thermal equilibrium is maintained. In general, none of the quantities D U, Q or dW is zero in an isothermal process. In some ..