Question

7.
Which are the two groups of organisms with regard to :
a) the basic design of a cell?
b) the backbone?
c) the number of cells?
d) nutrition?​

Answer 1

Answer:

THE number of cells

Explanation:

Answer 2

Answer:

b) Backbone

Explanation:

Organisms are divided into 2 groups on the basis of Backbone.

1)Those who don't have Backbone are known as "Invertebrates".

2) Those who have a Backbone are known as "Vertebrates".