Because Earth is a closed systems ne energy from the sun enters,
no matter enters or leaves, except sunlight
energy from the sun enters, but is reflected back into space,
changes to one area do not affect any other areas,

answer; a muscle cell, another neuron and a of the above

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