The two main types are DNA and RNA
Density is mass of object per unit volume
Answer:
England
Explanation:
Swimming as a competitive sport. Swimming emerged as a competitive sport in the early 1800s in England. In 1828, the first indoor swimming pool, St George's Baths, was opened to the public.
Answer:
Fertilization
Explanation:
Fertilization is when an sperm cell fertilizes an egg cell
