Answer:
The correct answer is A.
Explanation:
A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.
So the answer is A.
I hope this helps.
The original rock<span> is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes.</span>
The Pterodactyl had bones in a similar shape to fingers in it’s wings
Answer:An ATP molecule attaches to myosin
Explanation:
Apex plus i just did it please mark brainliest if you want id appreciate it