Predation is responsible for the we see in modern organisms. evolution
co-evolution
nutrients
adaptations

Which plant has a visible leaf modification that will it conserve water in extremely dry environments?

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 phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?