A sex cell that hasn't been fertilized and has left the ovary would come out during the menstrual cycle under normal circumstances.
Answer:
gene pool? species?
Explanation:
Question is a bit vague hope this helped tho :(
1- Paleozoic era
2- mesozoic era
3- Cenozoic era
Answer: "Constrictive" pyramid
[ I hope my answer is correct]
Photosynthesis and cellular respiration both somewhat involve each other.
