Answer:
Oxygen, carbon dioxyde
Explanation:
After oxygen was distributed to somatic cells, there are higher concentraion of carbon dioxyde. Therefore, it will move out from our cell to be exhaled by lungs. Vice versa for oxygen
Answer:
a
Explanation:
If populations can interbreed, they are considered one species.
Answer:
First learn English oh oh oh oh thug life
Answer:
The hydrogen bond between complimentary nucleotides.