Which statement about the specific immune response is FALSE?
A..Each T or B cell has antigen receptors for only one specific antigen.
B..T and B cells recognize antigens by using antibodies bound to their surface C..membranes. Unique antigen receptors are created by genetic recombination.
D..Antigens must be presented by an MHC molecule for T and B cells to recognize them.
E..All cells express MHC-I molecules, but only antigen-presenting cells express MHC-II molecules.

Explanation:We have learned in Chapter 2 that the body is defended by innate immune ... The antigen-recognition molecules of B cells are the immunoglobulins, or Ig. These ... Membrane-bound immunoglobulin on the B-cell surface serves as the cell's ... of antibody molecules allows each antibody to bind a different specific antigen, .

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

the fossil record provides evidence of a common ancestor to many species.