Galactic Collisions Are Believed to Be Commonplace

question 89

True/False

Galactic collisions are believed to be commonplace.

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Definitions:

Platelets

Small cell fragments in the blood that are crucial for blood clotting and wound healing, preventing excessive bleeding.

Thrombin

An enzyme in the blood that facilitates the conversion of fibrinogen to fibrin, playing a critical role in the clotting process.

White Blood Cells

Cells of the immune system involved in protecting the body against both infectious disease and foreign invaders by responding to pathogens and initiating immune responses.

Vein

(1) A blood vessel that carries blood from the tissues toward a chamber of the heart (compare with artery). (2) A strand of vascular tissue that is part of the network of conducting tissue in a leaf; also called a vascular bundle.