Question

1. Which cells are useful for feeding in sponges?
(a) Thesocytes (b) Collar cells
(c) Pinacocytes (d) Sclerocytes
2. The larva of Ascaris undergoes the migration
in which of the following course ?
(a) Alimentary canal, liver, intestine
(b) Alimentary canal, heart, lungs, trachea,intestine
(c) Alimentary canal, heart, liver, lungs,trachea, mouth, alimentary canal
(d) Alimentary canal, liver, heart, lungs,trachea, pharynx, alimentary canal
3. Germ cells in Hydra are derived from
(a) ectoderm (b) mesoderm
(c) endoderm (d) mesoglea.
4. Syncytial epidermis is found in
(a) Pheretima (b) Ascaris
(c) starfish
(d) Hydra.
5. Which of the following structures will best help
in identifying arthopoda from annelida?
(a) Segmented body (b) Nephridia
(c) Eyes
(d) None of these
6.Which of the following uses water current forvarious exchanges between the body and thesurrounding medium ?
(a) Sponges
(b) Echinoderms
(c) Helminths (d) Coelenterates​

Answer 1

Answer:

hey mate

that's your answer

1. collar cells also called choanocytes
2. c option is correct
3. ectoderm
4. Ascaris
5. segmented body
6. echinoderms