Biology, 11.09.2019 23:30 graciearany
On a small island, three separate phenotypes of a single species of cherry tree occur—small, medium, and large seeds. a small population of mice is introduced to the island. the mice are the only organisms that eat cherries on the island. when they eat a cherry, they digest it and excrete the pit or seed completely undigested at another location. the mice choose the larger cherries with medium and large seeds and leave the smallest ones uneaten.
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Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.
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Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
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Hydroelectric uses moving water to do work such as grinding grains in a mill true or false
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On a small island, three separate phenotypes of a single species of cherry tree occur—small, medium,...
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