Answer:
IgM, IgA, IgE, IgD and IgG
Explanation:
IgM functions in the initial response to offence.
IgA is important for protection of mucus membranes such as in saliva, sweat, tears and gastric fluid.
IgE is active during allergic reactions and defense against infections.
IgD is found on the surface of lymphocytes and is activated upon contact with antigens.
IgG forms part of the secondary response to antigen and is also responsible for newborn protection.
Answer:
No
Explanation:
Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.
Note:
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<span>The footprints of a dinosaur are an example of what type of fossil?
D. Trace Fossil
</span>
Answer:
1. The body uses fat as a fuel source, and fat is the major storage form of energy in the body.
2. helping to strengthen certain structures or bringing oxygen to the body's cells.
3. Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions.
Answer:
I believe a layer deep underground would have older things, because the ground could erode over time causing the fossil to sink into the ground.
