Will give the brainlest

explain why the answer you chose is correct.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

Explain why phospholipid molecules form a bilayer. (3 marks)

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.