Neutrons are the subatomic particle that remain neutral.
Robert Hooke is the first person to observe cells as microscopic structures.
He was of British descent and, fun fact, he discovered cells by looking at a sliver of cork under a microscope lens (although the 'fun fact' is heavily simplified).
Choose all that apply.
Atoms__.
V A. Normally have no change
B. Are made of ions and electrons
C. Are the smallest unit of matter
V D. Are made of electrons protons and neutrons
The false statement is: T lymphocytes produce antibody molecules
B lymphocytes produce antibody molecules.
B cells and T cells or lymphocytes are both cells of the adaptive immune system. Progenitor T cells mature (start to express T cell receptors TCRs, CD4 /CD8 receptors) into T cells in lymphoid organ-thymus. T cell can recognize only those antigens that are presented on antigen-presenting cells, on their surface MHC molecules.
There are three types of T cells: Helper T cells,Cytotoxic T cellsand T regulatory cells.
