Your answer is B) the esophagus.
Your esophagus is located in your throat between your mouth and your stomach.
Answer:
The number of Aluminium atoms present in per cubic meter is
Explanation:
Given the density of Aluminium
is 
And the atomic weight of Aluminium
is 
Also, the Avogadro's number
is 
We need to find the number of atoms per cubic meter 

Plug the given values in the formula we get,


So, the number of Aluminium atoms present in per cubic meter is
Answer:
It would be E. A small yellow ball that represents the Sun Reset Next i got the answer from somebody else
Explanation:
hope this helps :)
The electronic configuration of ‘N’ atom is 2, 5 and to have Octet in the valence shell it requires three more electrons.When two nitrogen atoms approach each other, each atom contributes 3 electrons for bonding.There are six electrons shared between two nitrogen atoms in the form of three pairs.Therefore, there is a triple bond between two nitrogen atoms in $N _{ 2 }$ molecules.
Answer:
1 billion molecules O₂
Explanation:
From my research, a human red blood cell contains approximately 270 million hemoglobin molecules.
A hemoglobin molecule contains four heme groups, <em>each of which has an iron ion forming a coordination complex that carries every dioxygen molecule. </em>Therefore for each hemoglobin molecule, we will have 4 dioxygen molecules. The heme groups are responsible for the transport of every dioxygen and other diatomic gases.
Hence, the number of O₂ molecules in a red blood cell saturated with 100% will be:

So, the correct answer is 1 billion of O₂ molecules.
Have a nice day!