An anthropologist finds a fossil that is 4 million years old. its pelvis suggests it walked upright. which species could the specimen belong to?

2. what process do mrna and trna work together to complete? (3 points)

What is the name for a substance formed in a chemical reaction

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