Answer: B. Comparative embryology
Explanation: Good luck! :D
I think the correct answer from the choices listed above is option A. Directional selection can be distinguished from disruptive selection by the elimination of extreme variations of traits. Directional selection is a natural selection where an extreme phenotype is favored than others.
The answer is c I did this like 2 days ago
1. energy
2.thermal equilibrium
3.heat
4.thermal energy
5.thermal expansion
6.temperature
