Arrange the rock layers from oldest to youngest. Reexamine the rock outcrops if you need to record the order in the Student Guide

The process of replication is the same for all living things because

Based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems