7. A student draws a model of cells in a solution. The arrows indicate the direction water
will move with respect to each of the cells.
cell
pure water
In which type of solution are the cells?
A hypertonic
B hypotonic
C isotonic
D mitotic

Plants that have reproductive structures called cones are?

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

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.