Because the universe is expanding, what happens to light from other galaxies as it reaches Earth? It is dimmer.

It is red shifted.

It is blue shifted.

It is brighter.

It's blue shifted

Explanation:

As galaxies move away from Earth, they move to a red shift, and the wavelength gets longer. But as they move towards Earth, they move to a blue shift and the wavelength gets shorter.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.