Which one of the following steps would be included in the primary response in humoral immunity?
a. antigen binds to antibodies
b. cytotoxic t cells bind to infected body cells and destroy them
c. t cells activate cytotoxic t cells
d. a macrophage consumes a virus and displays antigens on its surface and signals t cells to divide.

autosomal

explanation:

is a term used in genetic genealogy to describe dna which is inherited from the autosomal chromosomes

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.