Answer:
The answer is TRUE. Most cnidarians have two layers of cells that are organized into tissues: Epidermis and Gastrodermis.
Explanation:
Cnidarians' basic body organization is simple: It is a hollow structure composed of two cellular layers:
- <u>epidermis</u>, which is the external layer,
- <u>gastrodermis</u> which is the internal layer, composed by lining cells in the gastrovascular cavity.
Between these two there is the <em>mesoglea</em> that varies from a thin, non-cellular membrane to a mucous, fibrous, thick membrane with amebocytes.
Epidermis and gastrodermis <em>originate from two embryonic tissues</em>, the ectoderm, and the endoderm.
The <em>epidermis</em> is formed of <em>five types of cells</em> with different functions: epitheliomuscular, interstitial, cnidoblasts, secretors, and sensorial.
<em>The gastrodermis</em> is composed of nutritive cells, glandular enzymatic cells, secretory cells, and sensorial cells.
