Answer: I think the first answer would be the best option
Explanation:
A mutation is a permanent change in the order or bases in DNA
Transgression is to go against. Whereas marine regression is under sea floors to rise above sea levels.
You need to put the answer choices because there is a lot that makes natural selection occur. but without the answer choices i would say a fertile female and made of reproductive age.
Answer: Sperm cell and Ovum
Explanation: Possibly
Crossword
1. hyphae
3. heterotroph
7. eukaryote
8. flagella
11. protists
9. nucleus
10. bacteria
12. prokaryotic
13. autotroph