Pictured is a ribosome. how are ribosomes different from most other cell organelles?
a. they are transported through the plasma membrane.
b. they are generally located outside the cell.
c. they are not enclosed by a membrane.
d. they contain dna.

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

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.

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil