Im pretty sure its different because its the biggest star
Answer:
pumps/channels
Channels are a type of facilitated diffusion.
Pumps are a active transport system to any living thing. So, the answer is pumps/channels.
Hope this answer helps!
I believe the answer is Oxygen and Carbon Dioxide. Hope this helps:)
Answer:
B) Stem cell research led to a huge leap in medical science.
Explanation
Therefore they are known as polypeptides.