by abhishek | Aug 19, 2020 | Nervous System
Movement may be defined as the change in position of an organism with respect to its surrounding. Although all the plants are fixed at a place, yet they show movements. In plants the movements are shown by their parts in the form of growth. These movements are caused...
by abhishek | Aug 19, 2020 | Nervous System
All the living organisms need some means to control and coordinate their activities, so that the different organs of their bodies work together as a whole. In most organisms this objective is achieved with the help of nervous system and endocrine system. The nervous...
by abhishek | Aug 19, 2020 | Nervous System
In plants nervous system is absent. So, plants control and coordinate their activities by the action of chemical substances called plant hormones or phytohormones present in them. The main phytohormones present in plants are: Auxins Gibberellins Cytokinin Ethylene and...
by abhishek | Aug 19, 2020 | Transportation
Lymphatic system is a system consisting of lymph, lymphatic capillaries, lymph vessels and lymph nodes. Lymph is another medium of transportation of substances in human body. Lymph is a colourless or light yellow fluid present in tiny tubes called lymph capillaries,...
by abhishek | Aug 19, 2020 | Transportation
An electrocardiogram is a graphic record of changes in electrical voltage when the heart beats. The machine by which the electrocardiogram is recorded is known as electrocardiograph. The importance of ECG is that it gives us accurate information about the working of...
Recent Comments