How many bones are in the human body?

How does natural selection change thephenotypes within a population over time?

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now