When a person’s body becomes infected by a virus, white blood cells in the blood produce specialized immune cells that help fight the virus, and protect the body from infections it can cause. The specialized immune cells, along with other cells, are circulated throughout the body so that the cells can reach the areas of the body that require an immune response. Which two body systems interact to protect an individual from a virus? A.

circulatory and immune

B.

respiratory and nervous

C.

skeletal and immune

D.

circulatory and respiratory

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.