Answer:
Columbian Exchange
Explanation:
I looked up definitions and information on all the option words, Columbian Exchange seems to be a fit for the answer.
The rock's age is being determined, and is determined hope I helped!
TATCCG is the complementary code
adenine and thymine (A & T)
guanine and cytosine (G & C)
I’m pretty sure it may be: ecology ?
Active Transport: Moves molecules and ions from lower concentration to higher concentration w/ ATP energy
Passive Transport: Move molecules and ions from higher concentration to lower concentration w/o any energy
Hope this helped!