If you observed a cell under a microscope and saw that it contained a plasma membrane, cell wall, and ribosomes, but no other organelles, what could you conclude?
a: its an animal cell
b: its a prokaryotic cell
c: its a plant cell

What food can provide the body with a quick source of the energy needed to carry out cell functions (a) whole grain bread (b) ground hamburger (c) vegetable oil (d) whole milk

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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.