Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?
a eukaryotic cell that can make its own fooda prokaryotic cell that can make its own foodan aerobic bacteriuman anaerobic bacterium

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.

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks