If a species is said to be extinct, then that species is reduced to zero. There are none living in existence. The affects to other organisms of its extinction would depend on their value to the ecosystem. Regardless, extinction completely stops evolution of the species extinct.
Phosphate groups are polar and allow the cell to exist in water.
1. A
2. E
3. C
4. B
5. F
6. G
7. D
<span> All the millions of different proteins in living things are formed by the bonding of only </span>20 amino acids<span> to make up long polymer chains.</span>
I’m not sure but I’m guessing the answer would be the first one !
