Pulmonary vein. It enters your pulmonary vein and then enters your left atrium.
I hope that helped :)
As far as I know, radioactive dating is the measure of radioactive substances in a fossil or something. Like the fossils have a radioactive substance in them, it is the only thing that can show how long the fossils been aging, therefore being able to show the date. And thats how radioactive dating works, and that is how a paleontologist uses it
Answer:
Plasma membrane, cytoplasm, ribosomes, and DNA.
Explanation:
There are what eukaryotes and prokaryotes have in common.
Antibodies is the correct answer because they form bonds
