PLS ANSWER QUICK Index fossils help scientists estimate the age of a rock because index fossil species only existed for a relatively short time. What happened to the species that are now used as index fossils.
1. They became extinct
2.They changed diets
3.They hid in marine sediments
4.They migrated to new environments

Ifound this on google “interphase is divided into three phases: g1, s, and g2. the subsequent mitotic (m) phase consists of two processes: mitosis, the process of nuclear division, and cytokinesis, division of the cell's cytoplasm. each mitotic phase results in the formation of two cells that are genetically identical to the parent. for more information go to the web down below cyberbridge.mcb.harvard.edu › mitosis_3i hope this you for what your looking for.can you plz mark me brainliest?