Pineapples, unlike most other fruit, contain an enzyme called bromelain, that breaks up the gelatin into it's amino acid building blocks. [Enzymes are biomolecules that catalyze chemical reactions; most of them are proteins themselves.] Due to the bromelain, your jello doesn't become (or stay) solid.
Answer: The Neurons Make up the Brain!! Approximately 86 billion neurons
make up the whole brain!!;)
Types of Neurons (Nerve Cells)
The human brain has approximately 86 billion neurons.
Explanation: I basically out the same thing 3 times, my mistake!
<span>Average speed=distance/time=7.5 km/1.5hr=5km/hr</span>
