Which one of the following is not a characteristic of phyla Echinodermata?
1.body is protected by hard shell
2.water vascular system
3.ocean bottom
4.tube feet
1
Only 1,2,&3
2
Only 1&4
3
Only 1,4&3
4
All are correct
Which one of the following is not a characteristic of phyla Echinodermata?
1.body is protected by hard shell
2.water vascular system
3.ocean bottom
4.tube feet