Be able to explain the difference between an invertebrate a

- Be able to explain the difference between an invertebrate and a vertebrate - Know which group of invertebrates are considered to be the most abundant animal group

Solution

Difference between invertibrates and vertibrates are as follow.

(i) Animals without the back bone are called invertibrates (i) Animals with internal skeleton made of bone are called vertibrates

(ii) Multicellular without backbone and without cell wall (ii)Well developed internal skeleton with highly developed brain .

(iii) 98% of animal species are invertibrates (iii) 2% of species of animals are vertibrates.

(iv) Number of species two million named and many million are un identified (iv) 59,739.

Most abundan animal group of invertibrates is Arthropoda.