Lithium (Li) and oxygen (O) are both in period 2. They both have.

How does the study of genetic disorders such as pku biologists understand normal alleles?

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Drag each label to the correct location on the chart. match the function to the type of tissue