A observation and hypothesis
Answer:
b
Explanation:
because it's doesn't breathe or mover
I think the answer is Quartz
According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
<h3>What is the hepatic portal vein?</h3>
It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.
The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.
Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
Learn more about the hepatic portal vein here: brainly.com/question/15511202
#SPJ12
Hey You!
I believe the correct answer to your question is: Endangered Species. (Also called threatened species).
I Really Hope This Helped You, Good Luck With Your Studies! =)
