I think A but I'm not totally sure!! Good luck.
Answer:
burning of coal
Explanation:
Coal contain carbon which combines with oxygen.
A pairs with T
C pairs with G
and vice versa so
TTTTTAACG
CCGAAATGT
<span> It is 130/90 or 140/90 </span>mmHg<span>. for every </span>
Here are the answers in chronological order:
1.28
2.ovaries
3. Fallopian tube
4. ovaries
5. ovary/ovum
6.ovary/ovum
7. ovulation
8. egg
9. uterus
10. vascular endometrial tissue
11. Fallopian tube
12. sperm cell
13. uterus
14. fertilized
15.blood
16. uterine
17. cervix and vagina
18. 28
19. menstruation