I believe it is the Nitrogen cycle although all of the cycles use bacteria. Only nitrogen requires nitrogen fixing bacteria to keep the cycle going.
Since biochemical function is determined largely by specific enzymes (proteins), different sets of genes must be turned on and off in the various cell types. This is how cells differentiate.
Answer:
I am not certain but I think carbohydrate
Answer:
So I'm pretty sure.. the correct answer is...organic. Aka - "A"
Explanation:
(( Have a good day. <3 ))
Answer:
a.
Explanation:
The portal vein or hepatic portal vein (HPV) is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver.
