The beginning of the Eocene Epoch Era.
Answer:
C
Explanation:
During their development, many organisms look similar, suggesting that very different organisms may have a common ancestor. - Think of the human fetal neural / spine development which mirrors other species.
The factor that is most likely to have a density-independent influence on population growth is Extreme weather conditions.
Density-independent factors such as weather and climate, exert their influences on population size regardless of the population's density. Conversely, the effects of density-dependent factors intensify as the population increases in size.
The difference between extrusive and intrusive rocks are how they cool
down. Extrusive rocks cool down quickly and are created by lava; because
of this they have very small, fine-grained crystals. Intrusive rocks
cool slowly beneath the surface of the earth and are created by magma;
because the cooling process is very slow the rocks have very large
crystals.
Definitely not long, I’m not sure the exact time, look it up
