When antigens (foreign substances that invade the body) are detected, several types of cells work together to recognize them and respond. These cells trigger the B lymphocytes to produce antibodies, which are specialized proteins that lock onto specific antigens
Answer: chorionic villus sampling
Explanation:
CVS: A thin tube that is guided through the cervix. Is a type of prenatal diagnostic test to detect chromosomal problems that can result in genetic diseases and birth defects.
Answer:
9:enforcement terrorism, 10:true,11:true
Answer:
Explanation:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.