Question

Living things on essay 100 words

Answer 1

Answer:

living things means organisms which do all life processes like, digestion, respiration, breathing, nutrition, excretion, reproduction, etc. examples of living things:- humans, animals, and plants etc. they are also known as biotic things. we are superior to all other living beings. All living organisms are cellular. Cells in different organisms exhibit close similarly in structure, molecular organization and biological activities. Thus, there exists a unique master plan of organization of all cells. All organisms have the cell as their basic structural and functional unit. Schleiden and Schwann cofounded the cell theory, according to which all living organisms are composed of one or more cells. Cells are the basic units of living organisms. All cells arise from preexisting cells.

Each cell acts as a self-contained unit. It can carry out nutrition, respiration, growth, reproduction and self regulation wherever required. Isolated living cells of multicellular organisms can grow for generations artificially. Plant cells are found to be totipotent.

A single cell performs all its life processes in unicellular organisms. The organelles it contains help the cell to carry out and regulate different cellu­lar activities. But in multicellulars, there is division of labour and the cells interact and cooperate to perform different activities.