I think the answer is evolution.
I say false cause a hypothesis is a guess and not all the time it's dealing an experiment. If It is dealing with an experiment then true
First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst. hope this helps :)
Answer
The common name of Lucy is Southern ape, while their scientific genus name is <em>Australopithecus afarensis</em>.
Have you ever watched a caterpillar turn into a butterfly? If so, you're probably familiar with the idea of alife cycle<span>. Butterflies go through some fairly spectacular </span>life cycle<span> transitions—turning from something that looks like a lowly worm into a glorious creature that floats on the breeze. Other organisms, from humans to plants.</span>
