Tracy suffered from chicken pox in her childhood. At the age of 25, she gets it again. However, this time she recovers with minimal treatment or medication. This was possible due to the cells produced by the
immune response

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

What are genotypes? what are phenotypes?

Match the description of each organism to the appropriate category