Question

Multiple choice questions

Which of the following are exclusively marine animals?
1. Cnidarians
2. Echinoderms.
3. Molluscs
4. Arthropods

'Organs of Bojanus' is a characteristic feature of-
1. Porifera
2. Molluscs
3. Platyhelminthes
4. Hemichordata


Heart is perfectly four chambered in

1. Snake
2. Garden lizard
3. Crocodile
4. Varanus

Answer 1

hi friend !!
_________
my answer to your questions are as follows :-

a) exclusively marine animals - 1. cnidarians
b) organs of Bojanus - 2. molluscs
c) perfectly 4 chambered heart - 4. varanus
_________

pls friend mark it as a brainliest one !!@

Answer 2

2. Echinoderms.
2. Molluscs.
3. Crocodile.

Hope these are correct and helps you.lf you like, please mark me as brainliest.