Dos métodos anticoncepcionais, o que não oferece segurança porque é um método com grande risco de falhar, é: a - pílula anticoncepcional
b - camisinha (preservativos)
c - DIU
d - método natural (tabelinha)

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

answerblank(1) renal fascia; blank(2) fibrous capsule;