Which of the following did Aristotle use to support his theory that the Earth was not flat?
different constellations seen by people in the North and South
oblate spheroid calculations
Earth's diameter
satellite images
shadow of the Earth during an eclipse

Which statement best explains how cellular respiration maintain homeostasis in animals? it maintains body temperature by absorbing energy. it breaks glucose into energy required by the organism. it speeds up metabolism by making oxygen. it produces energy from hormones present in the organism.

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

In what for do plants utilize nitrogen? why do they need nitrogen?