A- Gravity. I believe it is gravity since that is the only one that makes sense in this situation. I hope i helped! :)
Thermal energy/ heat energy
<span>Animals and plants have cells that are specialized by the process of differentiation.</span>
Hello Wtfiswrongwitmeh, using radiocarbon dating, or carbon dating, you can determine the age
of an organic object from the relative proportions of the carbon
isotopes it contains. Therefore, if you take the fossils form the fossil
record and determine how old they are, you can see how/if they evolved
over time.
Blastula --> early embryo with spherical shape if cells before gastrulation into germ layers