which of these levels of biological organization contains the other three:
C) Body System
The name of the structure indicated by the question mark on this transverse cut of the developing embryo is the neural tube. This is further explained below.
<h3>What is a neural tube?</h3>
Generally, The neural tube is simply defined as the facilitator of the central nervous system
In conclusion, the neural tube is the brain and the spin.
Read more about Humans
brainly.com/question/18540902
The human respratory system is responsible for removing 2 carbon dioxide from blood
This picture represents humoral immunity, please read through it, and if you dont understand which option is your answer then i would recommend you read more about this topic, if you want it to be done fast, you can read this http://www.s-cool.co.uk/a-level/biology/immunity/revise-it/the-third-line-of-defence
I hope you can come up with the answer on your own as it will be a good thing for you in your future exams :)
Surely i can help you if you dont understand something so just ask :D
Number 13 is C
Number 14 is C
Number 15 is B