Question

chordates are slowly developed from non chordartes..give reason.​

Answer 1

Answer:

non chordates donot have backbone

so it took greter time for their evolution

Answer 2

Answer:

Balanoglossus is considered a connecting link between chordates and non chordates because it shows characteristics which are present in both the phyla. For example, Balanoglossus shows the presence of notochord and pharyngeal gill slits which is a characteristic feature of chordates.

Explanation:

this is the answer i think it is help full to you