A) gravitropism is how they "know"
I think it's in Antarctica. The frozen water :/
Bloooooooooooon . , ,jh .
Answer: Photosynthesis
Explanation: Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
A - rostral and cranial are very similar but rostral are for head structures
HOPE I COULD HELP!!! C: