Misc: Which U2 offering was the first ever million-selling CD?

Questions

Diverse group of either single-celled or multicellular organisms that obtain food by direct absorption of nutrients?

Division of geologic time in the Cenozoic era following the tertiary period (geology)?

DNA analysis suggests there are three distinct species of this animal, African forest, African savanna & Indian. What animal?

DNA stands for what?

Do arteries carry blood towards or away from the heart?