Which two body systems are interacting to maintain homeostasis by transporting acidic blood away from the cells and expelling excess carbon dioxide from the body?

amber has allowed scientists to study dna that has been preserved over millions of years.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

the dark variety, as they are not visible on the dark tree barks

explanation:

blue

light-years

magnitude