level of organization in plant and animal

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 individuals formed by..

Each link in a food chain is known as a trophic level. For example, in each food chain, plants always form the first trophic level..

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 individuals formed by buddi..

Growth at the cellular level involves four stages Cell expansion: an increase in the size of the cell due to formation of new protoplasm. Cell division: the cells increase in number due to mitotic cell division Cell differentiation: the cells became specialized to per form specific roles ..

Many organ systems in coordination with one another form the organismic (or individual) level. A frog, for example, has various organ systems in its body like the integumentary system, digestive system, respiratory system, circulatory system, excretory system, reprodu..

1) They produce food for all organisms 2) They provide beneficial substances like drugs, tannins, fibres, rubber, vegetable oils, fuel, condiments. 3) Some plants contain alkaloids which check growth of cancer cells. Example: Rosy periwinkle. 4) Plants release O 2 , c..

They produce carbon monoxide, carbon dioxide, sulphur dioxide, phenol, fluorine, cyanide, particulate matter, etc. Volcanic eruptions release oxides of nitrogen that pollute the atmosphere. Decomposition of organic matter under anaerobic conditions produces methane which on being oxidise..

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

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 subdivided into two subki..

Conclusion - Respiration is an important process in nature. It is a process by which the solar energy trapped by the plants in the food can be utilised. The organic compounds are broken down to release energy. This energy is in the form of ATP molecules and is made available for..