Due will mark as brainliest if answered

#1-5 define each term

1. nonspecific defense
2. hiv
3. b cell
4. t cell
5. cytotoxic t cell

a. type of cell that develops into cytotoxic t cells
b. a virus that attacks the immune system
c. type of reaction to infection that includes the inflammatory response
d. type of cell that destroys cancer cells
e. type of cell that develops into plasma cells

#6–9 write true if the statement is true. if the statement is false, replace the underlined term with a term from the chapter that makes the statement true.

6. long-lasting lymphocytes that “remember” a specific pathogen are called t cells.
7. a disease of the immune system caused by a virus is rheumatoid arthritis.
8. t cells play the major role in cell-mediated immunity.
9. a(n) antigen is a disease-causing organism.

What protects the lining of the stomach from acidic gastric juices?

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)