On the basis of origin of mouth, animals have been categorized into
Protozoa and metazoa
Protostomia and metazoa
Protostomia and deuterostomia
On the basis of origin of mouth, animals have been categorized into Protostomia and deuterostomia.
Differences between protozoa and metazoa
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,