This is a two-part answer to your question. In the UK and Northern Europe, most beekeepers are hobbyists so maintaining a high bee population isn't an issue because most of them only want some honey for themselves with maybe a small surplus that they can sell to cover the cost of their hobby.
In the US the situation is very different. Bee farmers hire out their beehives to fruit growers for pollination purposes and the fee that the fruit farmer pays to the bee farmer is his business income. The bee farmer maintains (or increases) his bee population by creating an artificial swarm ie taking a colony of honey bees and splitting it in two thereby creating two colonies where originally there was only one. This is the way that bees reproduce anyway - the bee farmer is just encouraging them to reproduce in his own apiary rather than let them do it naturally because letting the bees do it their own way will mean losing half of his bees rather than doubling their numbers.
It depends on the animal in question. A viable population will ensure that there are enough individuals to ensure the population will remain in a viable condition for a given period of time. Some scientists hold to the belief that a minimum viable population of 50-500 individuals will ensure the sustainment of the population over time.
No
The minimum viable population of domestic cats in the hundreds. There will likely never be an extinction of cats though.
No
The business plan is a backbone of the company that shows if the business is a viable investment.
As there are many thousands of restaurants in business today it is safe to assume it is a feasible and viable business.
to know either the business is going to be viable on not
Viable business or thriving business. Both mean about the same thing. A business in good shape..
S***
There are many viable business opportunities, but you should research what you are trying to do before spending money doing it. For example selling ice in Alaska in the middle of winter won't work, but if you have an idea that is something people need your business has a better chance of working.
Growth is associated with progress. If a business is growing, it is considered to be highly successful. If you are growing, you are a viable part of the business and will be kept around.
If you have a viable business, then yes, you should have a bunsiness account. It will help you (or your accountant) to keep track of your accounting.