When not actively using a scalpel or other sharp dissection tool during an activity it is best to store it

How are gene and protein sequences used to classify organisms?

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

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?