Question

•Which animal lays eggs and does not produce young ones directly?
•How many pair of heart is found in an earthworm?
• Which substance found in blood which helps in clotting?
•Which worm reach into intestine of human by eating leaf?
•Which is the phylum that includes exclusively marine animal?
• Which organs has its own wave of autonomic excitation?

Answer 1

Hey there!!

1. Echidna is the animal that lays eggs and doesn't produce young ones directly.
2. An earthworm has 4 pairs of hearts.
3.  Fibrinogen is the substance found in blood which helps in clotting.
4. Tapeworm reaches into the intestine of human by eating leaf
5. Echinodermata is the phylum.
6. Heart is the organ that has its own wave of autonomic excitation

Hope it helps!!

Answer 2

1: echidna
2:4 pairs
3: fibrinogen
4: tapeworm
5: echisnodermata
6:heart..
hope this helps ...
and remember this has been taken from google ....
its fully certified...