The Innermost Layer of the Gastrointestinal (GI) Tract Wall Is

question 54

True/False

The innermost layer of the gastrointestinal (GI) tract wall is called the mucosa.

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Definitions:

Genetic Variability

The variation in genetic makeup among individuals within a population, serving as a fundamental resource for evolution and adaptation.

Natural Selection

The process by which organisms better adapted to their environment tend to survive and produce more offspring, a key mechanism of evolution.

Mutation

A permanent alteration in the DNA sequence that makes up a gene, varying from a single base pair to large sections of a chromosome.

Scale of Nature

A historical concept proposing a hierarchical order of living organisms from simplest to most complex, often associated with pre-Darwinian theories of evolution.