level of organization in plant and animal

An organism is a distinct unit of life in nature. It is said to be the smallest level and basic unit of ecological hierarch..

All living organisms are basically composed of atoms of some chemical elements, particularly carbon, hydrogen, oxygen and nitroge..

Cloning of Organisms - Two or more individuals with identical genetic make up formed from one parent by asexual reproduction are called clones. For example, daughter plants produced by strawberry runners and whole plants produced by tissue culture are clones. Similarly..

The molecules of various chemical substances in a specific proportion become organised into protoplasm - the physical basis of life. The protoplasm gets organised into cells, which represents the structural and functional unit of life. A living organism may have a single cell (unicellula..

In multicellular organisms, cells having a common origin, group to form tissue. The cells in a tissue may be similar in structure to common functions (as in epithelium) or dissimilar in structure performing different functions (as in blood). There are different types of tissues meant for..

Terrestrial habitat Aquatic habitat Aerial habita..

All organisms require energy in order to stay alive. Energy is utilised to do the various bodily functions such as breathing, ingesting and digesting food, excreting, reproducing, locomotion, etc. Energy is obtained from food. Thus the process of intake of food is vital for the survival ..

Acidic water is dangerous to plants. Sulphuric and nitric acid rain washes nutrients out of the soil, damages the bark and leaves of trees and harms the fine root hairs of many plants which are needed to absorb water. Leaf pigments are decolorized because acid affects green pig..

Plant Kingdom - The following classification 'telescope' clearly indicates the mechanism behind the classification of the plant kingdom. Eichler in 1883 suggested a system to classify the plant kingdom which is well accepted. He said that the plant kingdom is..

. From an acellular level of organisation to cellular level and then tissue level, organ level and organ system level of organization can be recognised. In addition, one can recognise the gradual appearance of distinct ..