Large organic molecules that are synthesized from multiple identical subunits are

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.