The southernmost boundary for the suns rays to be directly overhead is called O the Tropic of Cancer
O the Antarctic Circle
o the Tropic of Capricorn
O the South Pole
O the Equator
O the Arctic Circle

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

enzyme speed up the reactions

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides