Which example best demonstrates artificial selection? Salmon swimming upriver to lay their eggs.
O The forrest service stocking trout in a lake in Montana.
O Farmers rotating crops in a field to keep the soil healthy.
O Farmers breeding pigs with less fat.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Does anyone know what a poms statement is for biology? i don't know what it is and i have an assignment on it tomorrow, will award the best answer a brainliest!