This threadlike structure found in cells is made up largely of proteins & DNA
This stage of complete metamorphosis occurs immediately after the larval stage
This bottom part of the brain stem controls breathing & heartbeat
It's the main metal in both bronze & brass
This white, glossy coating on your teeth is the hardest substance in the human body
The time it takes for 50% of the atoms to decay in a radioactive substance is called this
While compounds of this element are added to table salt, in its pure form it's quite poisonous
The "super" class of these stars, the largest known, includes Antares & Betelgeuse
On the pH scale, a pH of 7 indicates this type of solution
These animals, the only mammals that can truly fly, are not rodents