Virus is non living, but once it gets a host (something to live on), it is a living being.
Hello Pgoodrichstat!
The process that helps gas exchange occur is called diffusion.
Cheers!
-Blizzard
Switch A and D, but other than that your answers are correct.
An astronomical body is an object in space.
A comet is a celestial object consisting of a nucleus of ice and a stream of gas and dust.
A moon is an astronomical body that orbits around a planet.
A galaxy is a system of start held by gravitational attraction.
Ethanol produced from bioenergy starts with starch produced by corn and sugar cane :)
I think the answer is the individuals born per unit time.