Pulmonary vein. It enters your pulmonary vein and then enters your left atrium.
I hope that helped :)
Answer:
Domains
Explanation:
All Biological organism can be classified or placed in a group.
Taxonomy is a branch of science that deals with naming and classification of biological organism based on shared characteristics.
In taxonomy, a domain is the highest order of classification or ranking ,its even higher than the kingdoms.
It is inclusive of all biological grouping.
All cellular organisms can be placed in any of the three domains namely, Bacteria, Archaea and the Eukarya.
Answer: first 2 statements ie. It is essential that our diet provides these amino acids.
There are 20 essential amino acids.
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