Caroline noticed that her shower curtain is covered in green mildew , her roommate tells her that vinegar will get rid of it , caroline decides to test this by spraying one half of the shower curtain with 100 ml of vinegar and the other half with 100 ml of plain water , after letting both sides soak for 3 days there was no change in the appearance of the mildew on both either side of the shower curtain what is the independent variable ?

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

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.