Can a moderator please delete my first question. It was the wrong format and if someone could delete or allow me to edit it that will be great.

What is the phylum of soft bodied animals with a true bosy cavity and a three part body consisting of a foot visceral mass and a mantle

Mutations associated with albinism affect proteins involved in synthesis

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating