Biology, 19.10.2019 01:20 shahfaisal
In northern elephant seals, body size is determined by at least 8 genes. males compete for territories on the beach and larger males are more likely to win fights. in this example, inheritance of body size is intrasexual selection on male body size is which results in in mean male body size in subsequent generations. pleiotropic / directional / increasesepistatic / disruptive / decreasespolyallelic/ stabilizing/ no changepolygenic / directional / increasespolygenic / disruptive / decreases
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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 07:00
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
Biology, 22.06.2019 11:00
Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit
Answers: 3
In northern elephant seals, body size is determined by at least 8 genes. males compete for territori...
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