The heart is the key organ for blood circulation and the double circulation is an efficient way of circulation as it provides an effective way of... View Article
Natural Gas is mainly extracted from the petroleum deposits deep beneath the earth. In fact, it occurs just above the layer of crude oil, as... View Article
When all the parts of each whorl of a flower such as petals, are in similar shape and sizes, then such flowers are called regular flowers. When... View Article
Answer: (b) 21% The diseases that are transmitted from one person to another are called communicable disease. Water borne communicable diseases... View Article
(a) Semipermeable membrane: It is a biological membrane, which functions by permitting the movements of certain molecules or ions to pass through... View Article
Rings of cartilage are present in trachea to prevent their collapse when air is not passing through them. The cartilages are felxible tissues,... View Article
In plants, the movements are usually at the cellular level and hence a far less amount of energy is required by plants. Animals need to move from... View Article
Jaggery is a sugar cane product used as sweetener in most of India. The by-products of sugar cane are molasses and bagasse, generated from sugar... View Article
Nitrogen Cycle is a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the... View Article
Repeated blood transfusion is needed by the people who undergo major surgeries due to accidents or who are suffering from severe diseases such... View Article
The examples of self-defence by animal by chemical welfare. Honey bee stings that release an acid causing irratation and pain in the skin... View Article
The right ventricle receives deoxygenated blood from the right atrium and then pumps the blood to the lungs for re-oxygenation through the... View Article
