Answer:
Down below
Explanation:
1. if you have a lack of oxygen while in a state of heavy movement your heart will stop pumping blood because your whole body isnt receiving enough oxygen and now everything will begin to shutdown
2. you cant stop anything unless you get oxygen , it will take longer for you to die with lack of oxygen or no oxygen at all for that matter
3. atheletes will usually take heavy breaths of oxygen before holding their breaths for longer periods of time
A is the answer
a replication fork
B
because tRNA read the information from the mRNA to make the amino acid.
