The Following Are Steps in the Cell- Mediated Immune Response

question 65

Multiple Choice

The following are steps in the cell- mediated immune response. 1. Several cycles of mitosis occur.
2) Antigen is engulfed and presented by a macrophage.
3) Cytotoxic T cells migrate to focus of infection.
4) T cells with specific receptors recognize the antigen.
5) T cells differentiate into cytotoxic T cells or T memory cells.
6) Cytotoxic T cells release perforin and/or lymphotoxin.
The correct sequence for these steps is

• A) 1, 2, 4, 5, 3, 6.
• B) 3, 2, 4, 1, 5, 6.
• C) 2, 4, 1, 5, 3, 6.
• D) 4, 1, 5, 3, 6, 2.
• E) 3, 6, 4, 5, 1, 2.

Identify the biological communities associated with hydrothermal vents and their energy sources.

Recognize the importance of mid-ocean ridges and the features associated with them, including the role of melting asthenosphere and the characteristics of fast-spreading ridges.

Interpret the geological significance of oceanic plateaus and islands, including their formation through volcanic activity and hotspots.

Describe the types of sediments found on the seafloor and the information that can be obtained from drilling cores.

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Definitions:

Oropharynx

The part of the throat at the back of the mouth behind the oral cavity, including the tonsils.

Laryngopharynx

The lower part of the pharynx just below the oral and nasal cavities, serving as a pathway for food from the mouth and air from the nose.

Nasopharynx

The upper part of the throat located behind the nose, connected to the nasal cavities and the oropharynx.

Nasal Cavity

The hollow space within the nose through which air flows, filtered, warmed, and moistened before reaching the lungs.