What is BitCoin?

BitCoin is a new, all-digital, peer-to-peer (p2p) currency, which can be used to replace cold, hard cash when buying and selling goods and services online.
Unlike most money online, which is stored in banks and transferred using payment processors like PayPal, BitCoin is completely distributed between its users and sent between users without the need for a middleman.

Resume Biology Campbell 7 Edition

salam sobat, pada kesempatan ini saya ingin share kalian semua tugas saya matakuliah Biologi Umum,  yang saat ini mencoba resume buku Campbell dkk, Biologi Concept & Connection edisi ke 7, adalah sebagai berikut :