What type of molecule "unzips" DNA to facilitate the process of replication? * a nucleic acid
b lipid
c carbohydrate
d protein

Compare asexual reproduction to sexual reproduction

What word is used to describe differences of individual organisms

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community