Sometimes mutations (changes to dna) alter the protein that is made and sometimes it does not. explain how this is possible from what you know about the protein synthesis process.

when the chromosomes divide to create a new cell they miked get mixed up and the RNA will have to change it

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

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this