T cells attack antigens on foreign substances and B cells produce antibodies.
Answer: Protein complementation
Explanation:Protein complementation is the combination of two or more protein to help get all the required amino acids into the body.
It is done efficiently by combining two or more proteins usually legumes and grains because some proteins are incomplete protein sources that needs to be combined together to form a complete protein. Protein Combining is very much applicable to vegetarians to provide adequate amounts of all the essential amino since thier diet may not be able to provide sufficient amount of some essential amino acids,
The statement is once a year for women over 40 as they're more likely to develop breast cancer. Also it's once a year for all women over 18 with a family history of breast cancer as it is very rare to develop breast cancer as a child.
