Example for open type of circulatory system.
Amoeba
Earthworm
Man
Butterfly
In cockroach, the muscles that help in sending the blood into heart.
Tracheal
Cardiac
Alary
Branchial
The number of hearts in megascolex.
9 pairs
8 pairs
7 pairs
6 pairs
Caval veins in amphibians from.
Right auricle
Left auricle
Ventricle
Sinus venosus
In fishes deoxygenated blood is oxygenated in
Auricle
Gills
Lungs
Excretory system in cockroach is.
Malpighian tubuless
Ventricles
Auricles
Alary muscles
Vessels that carry blood to heart.
Arteries
Veins
Alimentary canal
An endocrine gland present in brain.
Pituitary
Thyroid
Oil gland
Digestive gland
Deoxygenated system in cockroach is.
Heart
Digestive system
Liver
In insects, the colour of the blood is
Colourless
Red
Blue
Green
