Circulation
Circulation - The passage of blood throughout the body under the influence of the pressure exerted by the heart is called circulation. In mammals and birds the circulation is called double circulation. This is because the blood passes twice through the heart ..
Circulation - The passage of blood throughout the body under the influence of the pressure exerted by the heart is called circulation. In mammals and birds the circulation is called double circulation. This is because the blood passes twice through the heart ..Circulation
>Single Circulation in Fish Double Circulation in Mammals and Birds For example, in fish, the blood goes from heart to the gills to be purified and from there to all the parts of the body. From the different parts of the body the blood is returned to the heart. However..
Circulation in Animals
Materials formed in one part of the body have to be taken up to other parts where they are needed or to be got rid of. This is an essential requirement of most animals. This function is performed by the body fluid..
Circulation of Lymph
The lymph is circulated in the body with the help of the action of the muscles surrounding the lymph vessels. Thus, the movement of lymph is slow and uncertain. Exercise improves the rate of lymph flow. The lymph vessels are provided with valves to prevent backflow of the lymph. Througho..
The lymph is circulated in the body with the help of the action of the muscles surrounding the lymph vessels. Thus, the movement of lymph is slow and uncertain. Exercise improves the rate of lymph flow. The lymph vessels are provided with valves to prevent backflow of the lymph. Througho..Open Circulation System in Cockroach
Schematic transverse section to show open blood vascular system of an insect Three sinuses in Cockro..
Schematic transverse section to show open blood vascular system of an insect Three sinuses in Cockro..Circulation in Animals Introduction
Introduction - Materials formed in one part of the body have to be taken up to other parts where they are needed or to be got rid of. This is an essential requirement of most animals. This function is performed by the body fluids. The movement of the body fluids i.e. blood and lymph from ..
Types of nutrition
Plants are self sustaining and are called autotrphs: Autotrophic nutrition. Acellular protozoans and animals are heterotrophs: Heterotrophic nutrition. Food consists of various components which carry out varied functions as required by the body. These different components are c..
Types of Reproduction
Summary - Reproduction is defined as the production of individuals of the same species, that is the next generation of the species. There are basically two types of reproduction - asexual and sexual. Asexual reproduction involves only one parent and the offspring is genetically similar to..
Different Types of Barometers
A barometer is a device for measuring the atmospheric pressure. There are different types of barometers. Some of them are described bel..
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