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.
Income Limits. In 2011, you can collect early Social Security and make up to $14,160 a year without penalty. For each $2 you earn over the limit, Social Security deducts $1 from your benefit amount. Once you reach the year of your full retirement age, yet before the month you reach full retirement, you can earn up to $37,680 without penalty.