Answer:
I would say Option B
Explanation:
A controlled experiment is where you have two or more independent variables, that way you have an experiment to compare results with.
Answer:
The correct answer is option C. hepatic portal system.
Explanation:
The hepatic portal system involves hepatic portal veins and its accessory tributaries. The hepatic portal system collects blood from digestive organs and spleens that consist of nutrients absorbed from these organs and circulate to the liver.
This system is unique to circulate both oxygenated and deoxygenated blood. This system involves most of the digestive organs from the esophagus to the end of the canal.
Thus, the correct answer is option c. the hepatic portal circulation.
Answer:
what are you asking what is the questions asking. Are you asking for a diagnosis?
Explanation:
Answer:
haha you're so funny but free points I guess
Explanation: