Answer:
A Car on the top of a hill
Explanation:
A Car on the top of the hill because The car isn't moving so it has potential energy NOT Kinetic
Answer:
Organ systems: human body and circulatory system
organs: heart
tissue: muscle
Explanation:
They are related because they are all in the same blood or family you breathe in oxygen and remove carbon dioxide the carbon dioxide it helps other stuff in the ecosystem to survive or live so its like this people breathe oxygen while plants breathe carbon dioxide.