Answer:
There are 3 main types of T cells: cytotoxic, helper, and regulatory. Each of them has a different role in the immune response. Cytotoxic T cells (Tc cells) have a co-receptor called CD8 on their cell surface. CD8 partners with the T cell receptor and with MHC class I molecules, acting as a sort of bridge.
Explanation:
Answer: d
The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
According to sources, the most probable answer to this query is that ethical issues such as animal use in laboratories and their cloning may pose a uninviting view towards the community
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Answer: I, iii, vii
Explanation:
because this is the important information needed.
Listen without interrupting the patient. Speak slowly, clearly and loudly. Use short, simple words and sentences. Stick to one topic at a time.
