How do flowers get their color and scent?

Flower is very popular for gift in birthdays, parties, and also in Valentine’s Day. Flowers are also used in marriages for decorations in the house.  The flower has a thin node which supports it. The pollen in the flowers are carried by different medium like animals, insects, wind etc. which result in the birth these…

What is the reason behind the different skin-colors of people?

It was noticed long ago that people from different parts of the world had different skin colors. For example, people who live near equator usually had darker skin than people who lived in colder regions.   When studied by scientists it was found that person’s skin color is determined by the amount of melanin in…

What is the meaning of Photosynthesis and its importance for this world?

Photosynthesis – It is the process by which plants make food by which solar energy is trapped by auto tropic organism and converted into food for the rest of organisms. No other chemical process on earth can match the output by photosynthesis. It is interesting to note that only 0.2 percent of the light energy on…

Brain

Brain is the central organ of the nervous system of human, and with the spinal cord makes up the central nervous system. It consists of the brainstem, the cerebrum, and the cerebellum. In human body, brain controls most of the activities of the body such as integrating, processing, and coordinating the information which receives from…

Nervous System

Nervous system – Nervous or neural system is the most important system of an animal and man. It is a system of highly specialized nerve fibers, nerve cells and organs that coordinate and control the activities of different parts of the body. This is done by converting the internal and external stimuli of environmental changes…