Answer in the picture

How is health different for most people in this country today from what it was for people born in 1900? a. people have a shorter life span. b. people today work harder to survive. c. people today live in poorer sanitary conditions. d. people today can focus less on day-to-day survival and more quality of life.

In this model, what do p, s, and a bases represent?

Which list shows the correct order of living units, from smallest to largest? 1: bone, osteocyte, periosteum 2: periosteum, bone, osteocyte 3: bone, periosteum, osteocyte 4: osteocyte, periosteum, bone