Ans:

The theory of Spontaneous generation was disapproved by the experiments of the French microbiologist Louis Pasteur as late as 1862.

(b) Describe Pastern’s experiment, which showed that organization don’t wise Spontaneously.

Ans Experiment:

To prove that living organizer don’t wise spontaneously, Pastern took two flasks half filled with yeast infusion containing a little bit of Sugar and heated their so as to kill any living organizer. He sealed the mouth of one of the flasks & left the other open to the air. After few days the observed that the lose flask was still free of any living organism while the open and has infested with living organism.

Ans:

A system is a set of some specific interrelated parts, which are organized s one unit for some purpose. The put of work together and the entire combination forms one unit. An arrival on a plant is also made up of numerous parts concerned which represent a well-defined system. For example, in an animal body, the parts concerned with the intake of food and digesting it, the bones arranged as a skeleton to Support the body, the heart circulating blood to different parts of the body, the heart circulating blood to different parts of the body through the arteries and veins and the beam receiving signals and give order of various kinds together compose a system.

The way these diverse forms of life depend on each other makes one imagine this planet itself as a huge system.