Biology - - 30 why is it rare to find fossils of animals from before the cambrian period? what about these animals makes it rare for them to form fossils? (answer both questions as soon as possible ! )

well when they were around that was decades and centuries ago so the bones have probably deteriorated from being pushed so far down in the earth

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

human-caused climate hope this