Anew mother asks the nurse why has my baby lost weigh tsince he was born

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Nerve cells are specialized to respond to stimulitrue or false?

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes