Which of the following blood vessels has thick elastic walls that can expand when the heart sends surges of blood? Arteries
Capillaries
Atrioventricular node
Varicose veins

How do healthy family relationships affect members of a community?

Which of the following is characteristic of the lytic cycle? a) viral dna is incorporated into the host genome.b) the viral genome replicates without destroying the host.c) a large number of phages are released at a time.d) the virus—host relationship usually lasts for generations.

Some traits such as the color of your eyes and the shape of your nose are controlled by and may affect your health and well-being