Two populations of mice living in the same forest are separated by a large
water-filled ditch. After a rainstorm, flooding brings several mice from one
population to the other population. When the mice from the first
population reproduce with members of the second population, which of
the following will likely occur? *
O All the offspring will die as a result of reproductive mutations.
O The offspring will be forced to leave the second population.
OThe offspring will be genetically identical to their parent from the first population.
O The offspring in the second population will have greater genetic variety.

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.

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

In one or two well-crafted paragraphs in your laboratory journal, summarize the process in which normal cells become cancer cells. your paragraph(s) must include each of the terms listed below. underline each term in your writing: