marine crocodiles
bony fishes
sharks and rays
turtles
The RH factor refers to
The richest source of vitamin A is
The right portion of human heart receives which type of blood?
The RNA molecules from a single strand of ribonucleotides of
The sailva secreted in the mouth digests
The saliva helps in the digestion of
The scavengers f earth are
The Science of using mechanical devices with human muscle skeleton and nervous systems to assist or enhance motor control lost by trauma, disease or defect is called:
The scientific study of how organisms interact with their environment is called
The sea horse belongs to the class of
