Which Hierarchical Level Is Represented by Label D

question 21

Multiple Choice

Which hierarchical level is represented by label D?

• A)Atom
• B)Cell
• C)Organ
• D)Tissue

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Definitions:

Oral Cavity

The mouth, or the beginning of the digestive tract, which comprises structures such as the lips, teeth, and tongue.

Nasopharynx

The upper part of the pharynx, connecting the nasal cavity above the soft palate.

Innate Immunity

Immune system response that is the same with each exposure to an antigen; there is no ability for the system to remember a previous exposure to the antigen.

Immune Response

The body's defense mechanism against foreign substances or pathogens through the activation of immune cells.