Answer:
Superficial vein
Explanation:
Whole blood for testing in clinical labs is usually collected from superficial vein.
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Answer:
Option (b).
Explanation:
Pulmonary ventilation is the mechanism of respiration in which the oxygen is inhaled in the body and carbon dioxide is exhaled out due to the pressure difference in the lungs and the environment.
The surface tension in the alveoli is decreased by the presence of surfactant. The increase in the surface tension of the alveoli increase the force that will require the additional muscles to work properly.
Thus, the correct answer is option (b).
Answer:
– Natural exposure to infectious agent stimulates your own B cells to produce antigen-specific antibodies – Artificial immunization (vaccination) with key antigens or epitopes from an infectious agent does the same thing – Active immunization results in immunologic memory (more vigorous response next time)
Explanation:
