José is learning about the fossil record. He knows the fossil record is the total number of fossils and their locations and that they provide information about an organism that once lived. Which of the following can José gather from studying the fossil record and its evidence?

A. Similarities between past and present species
B. How organisms will evolve in the future
C. Every plant and animal species that has ever lived
D. Origin of species and life on the planet

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

blue

light-years

magnitude

cell division is not regulated in tumor cells.