These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls.
If you will reach full retirement age in 2015, you may earn up to $3,490 per month without losing any of your benefits. But for every $3 you earn over that amount in any month, you will lose $1 in Social Security benefits.
1 Class 2 contributions are Â£2.80 a week for 2015-16. 2  On profits (earnings less allowable expenses) below a certain limit â Â£5,965 for 2015-16 â you can elect not to pay National Insurance. Anything you earn above Â£42,385 a year, you pay National Insurance at 2%. 2  If your earnings are below the earnings threshold you pay no National Insurance contributions. 3  You still build up rights to benefits, provided you earn Â£5,824 a year or more up to the lower earnings limit.