<span>Body Temperature Regulation
</span><span>Disease Protection and Healing
</span>Carbon dioxide and oxygen transportation
<span>Nutrient and Waste Product Transport
</span><span>Hormone Delivery
</span>
Skipping steps that might not be as useful or ones that are time consuming. THEY ALL MAKE A DIFFERENCE
Answer:
I would definitely go with the first choice.
Explanation:
============================================
Internal organs because it is
