Question

What is the utility of tissues in multi-cellular organisms ?

Answer 1

Tissue is a cellular organizational level intermediate between cells and a complete organism. Hence, a tissue is an ensemble of cells, not necessarily identical, but from the same origin, that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.............

Answer 2

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In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc. But in multicellular organisms, cells are grouped to form tissues.

These tissues are specialised to carry out a particular function at a definite place in the body.

For example, the muscle cells form muscular tissues which helps in movement, nerve cells form the nervous tissue which helps in transmission of messages.

This is known as division of labour in multicellular organisms.

It is because of this division of labour that multicellular organisms are able to perform all functions efficiently.

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