Identify the phyla of the organisms on the basis of following distinct characteristics: i. They possess long, cylindrical and segmented body.

ii. They possess long, cylindrical and unsegmented body.

iii. They have tube feet as locomotary organ.

iv. They are diploblastic and pores bearing animals.

Long answer

Phylum Annelida commonly referred as segmented worms possess long , cylindrical and segmented body .

Phylum Aschelminthes commonly referred as round worms possess long , cylindrical , unsegmented body and show sexual dimorphism .

Phylum Echinodermata which includes star fish have tube feet as locomotory organ .

Phylum Porifera commonly referred as pore bearing animals and are diploplastic which includes euspongia etc.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.