Astructure in the arm of a human is found to carry oxygen-poor red blood cells. what else is most likely true about this structure? a) it contains no hemoglobin b) it carries toward the heart c) it contains bronchioles d) it is part of the respiratory system

the right answer is b

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

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