II. Growth of lungs into the body cavity and development of the diaphragm. 1  lateral folding of the body wall encloses the foregut endoderm such that it is suspended within the intraembryonic coelom (or body cavity) by a sling of dorsal mesentery, which is mesoderm derived.
PayPal make money through following type of transactions. 1  2.9 to 3.9 % per transaction - each time a transaction happens on any website PayPal charges 2.9% for domestic transaction and 3.9% to international transaction. 2  3 to 5% on currency conversion charges - i.e. converting USD to INR or Converting USD to GBP etc.
Over a third of eBay's revenue comes from fees generated by PayPal. In the third quarter of last year, eBay reported $3.9 billion in revenue. $1.6 billion, or 41%, of that came from PayPal. The money that eBay makes through PayPal comes through transaction fees from sellers and people who use it to transer money. Here is how those fees break down. Sellers: For the most part, PayPal takes a 2.9% transaction fee on the total sale amount, plus a $0.30 fee per transaction.