Question

NCERT CLASS 9 CHAPTER-4

REFERNCE TO CONTEXT

EINSTEIN WAS DEEPLY SHAKEN BY THE EXTENT OF THE DESTRUCTION. THIS TIME HE WROTE A PUBLIC MISSIVE TO THE UNITED NATIONS.
IN IT HE PROPOSED THE FORMATION OF A WORLD GOVERNMENT.

Q.) EXPLAIN HOW THESE LINES AND THE LINE FOLLOWING REVEL THE HUMANINATION QUALITIES OF ALBERT EINSTEIN.

Answer 1

In plants body basic structure is a major criteria based on which Thallophytes are different from Bryophytes. Apart from this absence or presence of seeds is another important criteria. Gymnosperms and angiosperms are further segregated based on if seeds are covered or not. It is clear that it is the morphological character which makes the basis for classification of plants.

In animals classification is based on more minute structural variations. So in place of morphology, cytology forms the basis. Animals are classified based on layers of cells, presence or absence of coelom. Further higher the hierarchy animals are classified based on presence or absence of smaller features, like presence or absence of four legs.