Question

How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?

Answer 1

Hint: There are several living beings on the Earth. Plants and animals, both are living beings. But they differ in many aspects. Hence, criteria selected for their classification also needs to be different.

Complete answer: This world consists of millions of animals. It's unlikely for someone to research each one of them in his or her lifetime. On the basis of some common characteristics, classification makes it easy to assign new species to certain categories. The features used to identify plants are distinct from those of animals. It is because animals' basic shapes are very distinct from plants. So, let us take a look at the features based upon which plants are classified:
a) Differentiated or Undifferentiated plant body.
b) Presence or absence of vascular tissues.
c) With or without seeds.
d) Naked seeds or seeds within fruits.
e) Requirements for determining divisions in plants.
But in these conditions, the animals can not be separated into groups. In the animal world, when determining between subgroups, anatomical characters are taken into account. On the basis of their body composition, they are separated. Let us see a few such points based upon which classification of animals is undertaken:
a) Presence or absence of notochord.
b) Presence or absence of vertebral column.
c) Number of limbs.
d) Development of offsprings.

Note: Classification is a mechanism in which species that are similarly related are grouped in a certain category. Classes that are linked are put into larger groups. Different grouping levels or grades of classification is known as taxonomic groups. Nomenclature refers to the assigning of a universal scientific name.