What is the disadvantage of using models to study the food web? observations are made from inside the system. actual interactions are affected by the models. they cannot show all the interactions taking place. they cannot in making predictions about a population.

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

Depending on how the continental plates move it can cause a continental scale shift.