7: symbiotic relationship
8: mutualism
9: commensalism
A stands out most to me, CO comes from the air and air is basically oxygen we breath. When we exhale CO comes out (of course). I would say A is correct.
"Natural selection<span> is the differential survival and reproduction of individuals due to differences in </span>phenotype<span>. It is a key mechanism of </span>evolution<span>, it is a change of </span>heritable traits<span> in a </span>population<span> over time"</span>
I think it’s because the bacteria has evolved and become immune to the antibiotics.
Explanation:
plant cell only
- nucleus
- cell wall
- chloroplast
- golgi apparatus
- cell membrane
- ribosome
both plant and animal cells
- nucleus
- cell membrane
- ribosome
- golgi apparatus
