A secondary immune response occurs when an antigen is encountered on a second occasion, due to exposure to a pathogen that previ
ously caused infection. Which property of some viruses explains the lack of a secondary immune response? A. Viruses fail to induce a primary response.
B. Viruses can have a high mutation rate.
C. B cells do not interact with viruses.
D. Antibodies cannot interact with viruses.
Our bodies can produce antibodies against viruses when they're in the interstitium before they invade our cells. They induce a complete primary response with memory cell production.
And the biggest evidence is that if a person gets chicken pox (Varcilla), it's not likely that they'll ever get it again.
Now why isn't that so for all viruses? Why is it that we keep getting flu?
Not all viruses are like the Varcilla with stable genetic makeup. Many viruses keep changing their antigens so that even if the immune system produced antibodies against a certain strain with a certain antigen, it won't recognize a different, mutated strain.
Viruses can evade our immunological memory in this way.
By looking at the question and the photo listed above, the statement that will be true for all organisms is the energy is used by the organisms to obtain and transport materials, and to eliminate wastes. The correct answer choice is 4.
Reflection involves a change in direction of waves when they bounce off a barrier; refraction of waves involves a change in the direction of waves as they pass from one medium to another; and diffraction involves a change in direction of waves as they pass through an opening or around a barrier in their path.
The correct answer is homogenous. Minerals must be homogenous. Minerals are these compounds that are natural occurring in the form of solid and inorganic and can also be in a crystal structure. Minerals are identical which is why they are homogenous.
