What is a common Sexually Transmitted Infection (STI)?

A. Alkalosis and insomnia:

Alkalosis does not trigger sickling; acidosis (low pH) is more harmful. Insomnia alone is not a direct trigger.

B. Reduced stress and warm environmental temperature:

Reduced stress and warmth help prevent crises rather than cause them.

C. Acidosis and dehydration:

Acidosis promotes sickling of RBCs, and dehydration increases blood viscosity, both triggering vaso-occlusive crises.

D. High fat diet and hyperoxia:

A high-fat diet is linked to cardiovascular disease, and hyperoxia (excess oxygen) is not a trigger for sickling.

A. The general pathogen fighting system people are born with that does not change over time:

Innate immunity is nonspecific, present at birth, and provides immediate defense without adapting to specific pathogens.

B. The process in which endothelial cells are separated away from each other, making the capillaries larger:

This describes vascular permeability, a component of inflammation, not a definition of innate immunity.

C. The process by which the body automatically reacts to tissue injured by trauma or bacteria:

This describes the inflammatory response, which is a mechanism of innate immunity, but not the full definition of innate immunity itself.

D. The set of proteins that enhance the ability of the body to initiate the inflammatory response, attack a pathogen, and remove damaged cell material:

This describes the complement system, which is part of innate immunity, but again, it is not the complete definition of innate immunity.