Answer:Primary succession.
The answer is true. A matches with T. C matches with G.
Answer:
2. Alec Jeffreys
Explanation:
'DNA fingerprinting' or DNA typing (profiling) as it is now known, was first described in 1985 by an English geneticist named Alec Jeffreys. Dr. Jeffreys found that certain regions of DNA contained DNA sequences that were repeated over and over again next to each other.
Answer:
Sand
Explanation:
A well should be placed so that contamination from any source moves away from the well and not toward it.
