The correct answer is letter B, the age range of the skull is less than 10 years old. Teeth are also a form of bone that develop within the skull. Its structure helps archaeologists determine the age of fossils that they dug up from the soil. Children lack some prominent features compared to adults because their bodies are still growing and developing into maturity.
Controlled burning? I think that's right.
The best answer is C
Hope it helped!! :)
I would say that the fishes exhibited the greatest diversity (though the brachiopods also had considerable diversity) and mostly were of the ostracoderms (with a platey or shell-like skin and no jawbone) which exhibited many varieties and also the placoderm which had gills, a jawbone and fins so was developing characteristics of modern fish.
During anaphase, sister chromatids are pulled to opposite poles by the spindle fibers in preparation for cleavage.
