Polycardial means many hearts in the Greek language.
Polycardial means having multiple hearts (i.e. some aliens or monsters have multiple hearts).
Yes, the word polycephaly does mean many heads in the Greek language.
Yes, polypedal does mean multi-legged in the Greek language.
poly- eg:polygamy
The term 'Polystomatous' means many mouths in Greek.
Yes. Polymorph means many forms in Greek.
Many colored.
The word polyhepatic means many livers in Greek language.
The term 'polyoctic' means many ears in the Greek language.
The Greek word polygon means 'many sides'
The terms 'polynaribus' means many nostrils in Greek and Latin.
You mean by happiness? You need 2 for it to evolve.