Respirating in plants and animals

Which of the following is an advantage of solar energy?

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

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