In terms of evolutionary trend, which of these invertebrates evolved first?

a

Annelida

b

Arthropoda

c

Coelentrata

d

Platyhelminthes

e

Protozoa

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Correct Option
e

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Discussions (6)

Angiecakes2005
1 year ago

it's E, the evolutionary trend in invertebrates is protozoans- coelentrates- platyhelminthes- nematoda-annelida-molluska-arthropoda-echinodermata with protozoans being the earliest

Michaelimumoren
2 years ago

You forget they didnt say kingdom animalia they said which of the following invertebrates as in things that dont have a back bone plus
Protozoa are the simplest and most primitive of all the invertebrates and they evolved first before the other invertebrate groups listed in the options.
So the correct answer is E (protozoa)

MichaelTayo
4 years ago

The correct answer is C . Protozoa is under kingdom protista

iloveyam
4 years ago

Though protozoa doesn't have a backbone, it is still not classified under invertebrates in kindom animalia.
Protozoans are under kingdom protista
So the answer is c because it is part of the earliest invertebrates

Ajarat20
4 years ago

U na dey confuse me
My sch pls help

emmanuelnova
9 years ago

correct ansa is coelentrata admin take note

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