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.

Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.

Which of the following is not a defining characteristic of plants?

Which ingredient(s) in macconkey agar supply(ies) a) carbon b) nitrogen a) lactose: fermentable carbohydrate providing carbon b) casein and animal tissue: provides nitrogen