Question

mention three characteristics of phylum chordata

(MY EXAM IS GOING ON SO PLEASE GIVE ME CORRECT ANSWER PLEASE) ​

Answer 1

Answer:

1. notochord develop into exoskeleton
2. body is divided into head, neck, trunk and tail
3. heart is place ventrally and have a close circulatory system
4. paired gill clefts or lungs are used as organ for respiration
5. nervechord is single present on dorsal side and developes into a nervous system

Answer 2

Answer:

1. A notochord.

2.A drosal hollow nerve chord.

3.pharyngeal slits.

4.post-anal tail