Yes. There are seven billion people on the planet. There are four main eye color traits. What do you think?
Answer:
Tubules?
Explanation
The trachea, spiracle, and air sac are part of their respiratory system, Howeber, the tubules are what take away the carbon dioxide from their system. Im not sure if they produce the carbon dioixde. But they are a part of what removes the carbon-dioxide from their body.
Answer:
cell division
protein synthesis
growth and metabolism
Explanation:
idk if this is right I just looked it up
Elevation because it means the level of a point surface height above the sea level
