The half-life of 14C, a radioactive isotope of carbon, is approximately 5,700 years. The ratio of 14C to 12C in a fossil 30,000 years old would be that of a living organism today

life would be meaningless without memes

not sure if this is what you'r looking for nnew= nold

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.

not always but somethings can be reproduced in a laboratory.