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.
The three main worm phyla are flatworms, roundworms, and segmented worms. Roundworms have a digestive tube that has two openings. Segmented worms have a closed circulatory system in which blood is enclosed in blood vessels. These are important steps in the evolutionary development of animals.
If you stopped eating the first organic compound your body would use for energy is glycogen. The body begins to break down glycogen into glucose, which your cells use as fuel. The second organic compound is fat: body must breaks down fat into fatty acids for energy. The third compound are the organic reserves. The body has<span> not stores of sugar and fat, and starts to use protein reserves.</span>
Answer:
c.
Explanation:
A communication channel refers to any method as to which a message is sent to its intended receiver, examples of different types of channels include written, spoken, electronic, or multimedia. Therefore in this scenario a communication channel is the medium over which the message travels. Which would be answer choice C.
