The index fossils help study rock ages in wat way do index fossils help determine rock age

Index fossils are widely distributed and were around for a long time, and so they show up in many rock layers. which will help determine the rocks age

Explanation: hope this helps

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?