Answer:
Fireflies produce a chemical reaction inside their bodies that allows them to light up. This type of light production is called bioluminescence. When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme, light is produced.
Answer:
I believe the answer is 2
I don’t know if it is just me but the picture isn’t loading
Answer:
A few basic components comprise a jackscrew. The main piece is the screw itself. The screw may be connected to a plate of some kind housing a load or attached to another piece of machinery that is then moved.