It's letter c i believe, because they need the DNA's instruction on how to copy the exact tissue copy.
Answer: a compound known as calcium carbonate (CaCO3)
Explanation: Google the question itself
Answer:
Because your final periods can be irregular, menopause is confirmed 12 months after your last period. It is not normal to bleed or spot 12 months or more after your last period. Bleeding after menopause is usually a sign of a minor health problem but can sometimes be an early sign of more serious disease.
Answer:
Left Earth: Northern
Right Earth : Southern
Bottom Earth Northern : Summer
Bottom Earth Southern : Winter