68. Blue-green algae belong to the same Linnaean kingdom as bacteria. Which of the following characteristics do these organisms have in common?
O They cause disease.
O They are autotrophs.
O They are prokaryotic.
O They are multicellular.
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One gene can influence trait(s). one trait can be determined by gene(s).

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.

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line