Which wave has high enough energy to cause damage to skin and sometimes cancer? a) visible light

b) ultraviolet rays

c) infrared rays

d) microwaves

What re the two main phrases of the cell cycle.

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

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