which animals are called primitive and how are they different from other advanced organisms?
Answers
Answer:
organisms which have not evolved much and have primitive body design are called primitive organisms.On the other hand, organisms which have advanced body design and have evolved recently are called advanced or higher organisms.they are different because the are more complex.
NOTE: we never compare evolution with the progress.
Explanation:
Answer:
primitive animals are those animals who are not developed from millions of years they are having basic structure. as they lack of well defined structure as well as their organelles they were not able to perform that activities which were performed by advanced organisms as advanced organism have complete develop body they can get there on food by the process of injection as well as that can digest it absorb it assimilated and excrete undigested food as well as advanced organisms are modified to live according to the environmental condition of the earth today they can easily sustain their life but the primitive can't they can make their whole species extinct endangered. As well as they were not have that much sharp mind that the animals of today's world have.