None, because RNA do not have thymine
Probably the human body because that is very interesting
Answer:
to break down waste and worn-out cell parts
Explanation:
The answer would be true
Cohort and experimental study are best for finding causality because in both studies the effect/disease is not exist before the cause/exposure given. The sample of this study will be classified based on exposure of a certain factor. Cohort study is preferable in many case because intentional exposure in experimental study is not ethical.
The answer is C. Cenozoic era.
It's the era when mammals evolved into larger organisms and began subdividing into various species. Cenozoic is also known as the age of mammals, because it's the mammals that mostly occupied the lands.