Question

what is the definition of the following:
1) Prostomium
2) Perianth
3) Coleorhiza

PLEASE ANSWER IN UNDERSTANDABLE TERMS....

Answer 1

Prostomium - The prostomium is the first body segment in an annelid worm's body in the anterior end.

Perianth - The perianth is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx and the corolla.

Coleorhiza - the sheath investing the radicle in some monocotyledonous plants through which the roots emerge.