The correct answer is a lymph vessel that transports lymph to the lymph node.
The lymphatic system is the component of the vascular system and an essential immune system part, consisting of a network of lymphatic vessels, which transports a clear fluid known as lymph directionally towards the heart. Like the circulatory system, the lymphatic system is not a closed system.
One of the prime activities of the lymphatic system is to offer an addition return passage to the blood for the remaining three liters. The other main activity is that of defense in the immune system.
Interesting question.
"They are prokaryotes" - YES, both bacteria and Archaea are considered prokaryotes
"They reproduce by binary fission" - YES, but keep in mind (in case your teacher drops this on you in a quiz or exam) that Archaea do not form spores, which many bacteria are capable of
"They are believed to be the ancestors of plants" - ?? Not sure. If I had to guess, I would go with NO, since the general consensus is that plants developed from green algae. Check your class notes.
"They have a cell membrane made of unusual lipids" - NO, only Archaea have that (they possess unusual ether lipids as part of their cell membranes, which bacteria do not)
Hope this helps!
Good luck.
A) Scientists measure the radioactive decay of the elment isotpes.
