Answer: i think its 80 million years ago
Explanation:
The right answer is All answer options describe plasmids.
A plasmid is a natural or artificially modified circular DNA molecule for use in biological research.
The researchers use the plasmids to insert a DNA fragment of interest, thanks to the cloning cassettes. They can clone genes to express proteins or RNAs and analyze them.
Urethra as Nephrons form Kidney and Urethra isn't a part of Kidney.
Global winds rising near equator and cold air sinking near the poles
Answer:a
Explanation: because naturally it occurs anytime it wants to
