By Terry Bartelt
By Doyle Davis
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In this animated object, learners examine processes that do not use ATP directly including hydrostatic pressure and facilitated diffusion with carrier proteins.
In this animated and interactive object, learners identify the valves and chambers of the heart.
In this animated activity, students read about the two general types of variable resistors: potentiometers and rheostats. They then answer six multiple-choice questions.
Show everyone how much you know about heat and heat transfer by solving these 7 Terms!