Brainliesttt explain how proteins can be so diverse when there are only a limited number of different amino acids.

Hey there!

There are about 20 different amino acids in proteins. They can be made up of hundreds of acids. It is not really the type of amino acid that tells one cell from another, but the order or combinations the acids come in, which helps to define each cell. This is most important, remember that, order.

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relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

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as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.