M=43lb = 19,5kg
If 115mg --------- is for --------- 1kg
so
x ---------- is for --------- 19,5kg
x = 19,5kg * 115mg / 1kg
x = 2242,5 mg
The chemical make-up changes.
Absolute dating is finding the exact date of an artifact such as a fossil using a technique such as radioactive dating, etc.
Answer:
they are single cells that lack a nucleus and tend to live in extreme conditions.- B.
