Biology, 21.11.2019 20:31 brisamauro27
Volvox, the green algae illustrated here, is considered a colony. yet some scientists argue that it is more like a multicellular life form. in order for a cell or group of cells to evolve into a multicellular organism, all but one of these events must occur. that is
a cells are bound together
b cells specialize and cooperate
c cells form a protective outer sheath
d cells have like pairs of chromosomes
Answers: 1
Biology, 22.06.2019 01:30
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.
Answers: 1
Biology, 22.06.2019 14:00
Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?
Answers: 1
Biology, 22.06.2019 21:30
Technology can bring both good and bad things. pesticides can make crops more resistant to insects (good) but can harm humans if they are used improperly (bad). give examples of both the good and bad
Answers: 1
Volvox, the green algae illustrated here, is considered a colony. yet some scientists argue that it...
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