Answer:
d. immune system
Explanation:
Depending on the nature of the infectious agent, the immune response will use its most effective resources. In viral infections different mechanisms develop, both against the free virus and against the infected cell.
Viruses need the cellular machinery they infect to synthesize their proteins. They are intracellular parasites that depend on the infected cell to be able to carry out their replication. Viruses generally have very simple forms, composed of proteins and a nucleic acid, although their structure and composition is very variable. They are classified by virtue of the nucleic acid they carry in: DNA and RNA viruses, and by their form and structure in different families
The most active natural response mechanisms against viral infections are mediated by interferon and the activation of NK cells. These mechanisms are more directed towards infected cells.
Interferon is a cytokine of which three types are known, called: α, β and γ. The first two are mainly produced by monocyte-macrophages and to a lesser extent by fibroblasts, while interferon γ is produced by CD4 and CD8 lymphocytes and NK cells. Interferon has a great antiviral capacity, inducing different mechanisms, such as: transient resistance of cells inducing different molecules with antiviral activity, activating genes that express antiviral proteins and increasing the expression of SLA I and SLA II.
b. protein.
c. yeast.
d. calcium.
B. Sylvia takes two headache pills, just as the bottle calls for
C. Chen takes Andy's prescription medicine for back pain to help her own back pain
D. Jose takes an OTC constipation medication as the bottle directs
Fish is not a grain like oatmeal, brown rice, and whole wheat but it is a source of meat for humans,
Grain is a dry small seed that can be with or without hull or fruit flesh or layer. These are harvested by humans as crops for the consumption of humans or animals. These are used as a food source.
Grains are mainly two types, legumes and cereals, and are produced by grain-producing crops. The major examples of grains are; maize, rice, wheat, oat, and many others.
Fish is a source of meat as food that is found in rivers or oceans which is a good source of protein and omega-3 for humans to help in developing muscles.
Thus, the correct answer is - fish.
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