Answer:
all organisms need food for the energy required to live and grow.
The regulatory genes are not part of the lac operon.
When a meteoroid passes through earth's atmosphere, it heats up due to air resistance. The heat causes gases around the meteoroid to glow. most meteoroids that enter earths atmosphere disintegrate before they hit the ground.
Mitochondria are the powerhouse of the cell, they convert sugars into energy.
