In 1665, Robert Hooke published Micrographia, a book in which observations he made with a microscope caused him to coin the term "cell." He may have coined the term when he viewed a piece of dead cork, a type of plant, and thought it resembled the cells of a honeycomb. If he had viewed a section of living cork, what might he have seen? A
cells with nuclei, because cork plants have eukaryotic cells

B
cells with cell walls, because cork plants have prokaryotic cells

C
cells with chloroplast, because cork plants have prokaryotic cells

D
cells with free-roaming DNA, because cork plants have eukaryotic cells

Based on the results of this study, what questions remain unanswered? how can these questions guide future research

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius