Any Injury That Causes Bleeding Can Potentially Be a Source

question 13

True/False

Any injury that causes bleeding can potentially be a source of blood-borne pathogens (disease causing microorganisms), such as those that cause HIV or hepatitis B.

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Definitions:

Germ Layers

The three primary layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo that develop into all organs and tissues of the organism.

Gastrula

Three-layered developmental stage formed by gastrulation.

Sexual Intercourse

The physical act between individuals that involves the reproductive organs and can lead to reproduction in species that reproduce sexually.

Negative Feedback Loop

It is a regulatory mechanism in biological and mechanical systems where the output of a process inhibits or reverses the operation of the process itself, maintaining stability or homeostasis.