I’m pretty sure it’s the refractory period!!
Hope this helps!
<span>How many openings are in the digestive system of flatworms? Answer: 1
Flatworms digestive system is called 2-way which mean the same opening is used for eat and removing waste. That's why it only has one opening. Human system is one way since we eat from the mouth and remove waste from the anus.</span>
Answer:
zinc oxide is a pure substance
Answer:
Big Joe is the main character or the protagonist
Explanation:
Maybe because food was here before the population even started to grow?♀️