The gastrointestinal wall is composed of four layers or tunics:
- Mucosa
- Submucosa
- Muscularis mucosa
- Serosa
The innermost tunic of the wall is known as the mucosa or mucous membrane layer. The digestive tract's lumen is lined with it. The mucosa comprises epithelium, a layer of lamina propria, a loose layer of connective tissue, and the muscularis mucosa, a thin layer of smooth muscle.
The mucosa is surrounded by a substantial layer of loose connective tissue known as the submucosa. Blood arteries, lymphatic vessels, and neurons are also present in this stratum. The adventitia is a connective tissue that makes up the digestive tract's outermost layer above the diaphragm. It is referred to as serosa below the diaphragm.
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The answer is B. the policy holder When you sign up for an insurance policy, your insurer will charge you a premium. This is the amount you pay for the policy or the total cost of your insurance. Policyholders may choose from a number of options for paying their insurance premiums.
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The answer to this is genetic diversity. Genetic Diversity is the total number of genetic makeup of a species. It distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. <span />
Phospholipids are a class of lipids that are a major component of all cell membranes. They can form lipid bilayers because of their amphiphilic characteristic.////////
There are generally three kinds of mutation.
1. Substitution
2. Deletion
3. Insertion
A substitution is change one nucleotide for another
A deletion is removing a nucleotide
An addition Is inserting a nucleotide