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.

Me with these questions if you’re it sure don’t answer

Which could be a pathway of food through an ecosystem

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water