Changes in the dna sequence that affect the expression of genetic information are called

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

People with one sickle cell allele are not likely to get malaria. what is this an example of?

Iwill mark which of these statements best describes how nasa's kennedy space center benefits florida? it improve the average income of people. it encourages the use of science for entertainment. it produce more astronauts and space scientists in florida. it encourages people in florida to use space technology in homes.