When a B cell first interacts with its particular antigen, the B cell dies after destroying the antigen. engulfs the antigen and digests it. differentiates and develops into a clone of antibody-producing effector cells.

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above