Platelets

Platelets
Platelets: Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels. Platelets change their shape: Platelets, the smallest of our blood cells, can only be seen under a microscope. They look like...
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ALGAE

ALGAE
ALGAE Algae are the simplest of all plants. They live in water or moist places. It range in size from minute, single celled species to sea weeds which can be several meters long. All algae contain the green pigment chlorophyll....
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Trees

Trees
TREES The large sized plant with single stem is known as trees. It has trunk, branches and leaves. It helps to balance the atmosphere, stabiles the soil and supply food to all creatures. Trees have roots, stem, branches, bark, leaves,...
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Chemical Process of Digestion

Chemical Process of Digestion
CHEMICAL PROCESS OF DIGESTION IN MAN: Digestion process involves two processes namely, mechanical and chemical. When the food is taken in the mouth, it passes through the alimentary tract. As it passes down, it is treated mechanically and chemically. Chemical...
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Hormones

Hormones
Hormones: The secretions of endocrine glands are called hormones.Animals have two kinds of glands that are exocrine glands and endocrine glands. Exocrine glands have ducts to carry it secretions. Endocrine glands have no ducts to carry its secretions and it...
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