Question

Give any one difference between each of the following :

(a) Protozoa and Metazoa,

(b) Vertebrate and Invertebrate,

(c) Insecta and Archnida,

(d) Flatworm and Roundworm,

Answer 1

(a) Protozoa and Metazoa

Protozoa	Metazoa
Unicellular organisms	Multi-cellular organisms

(b) Vertebrate and Invertebrate

Vertebrates	Invertebrates
Have their unique backbone with the spinal cord	Do not have a backbone

(c) Insecta and Arachnida

Insecta	Arachnida
Have three pairs of legs	Have four pairs of legs

(d) Flatworm and Roundworm

Flatworm	Roundworm
Dorso-ventrally flattened	Cylindrical in shape and are tapered at both ends