I believe the answer would be d.muscle cramps. Breathing in toxins seems like it could relate to the other three answers.
The red blood cells bring oxygen to them and the lungs expel the carbon dioxide
Answer: I think im going to go with Option 2 because of Cycling .
A. Shock, realization, acknowledgment
Hello There! ^_^
Your question: What senses that your body temperature went up..?
Your answer: Our body senses warmth and coldness and sends a message to a brain which feels like our body's temperature went up.
Hope this helps! :D
