With less oxygen there is less carbon dioxide being produced for the plants so photosynthesis decreases.
Using R for dominant alleles and r for recessive alleles:
1. Rr
2. Rr
3. rr
4. rr
5. r
6. r
7. R
8. r
9. 50% Heterozygous (Rr) 50% Homozygous recessive (rr)
10. 50% Heterozygous Big feet (Rr) 50% Homozygous Small Feet (rr)
Colevent chemical bonds invole the sharing of valence electrons between two atoms, in contrast to the sharing of electron in an ionic bond that helps create molecules.
that's what I have for my notes, I hope this helps!