Chemical<span> Mixtures. A mixture is a material system made up of two or more different</span>substances<span>, which are mixed </span>but not combined chemically<span>. A mixture refers to the physical </span>combination<span> of two or more </span>substances<span> in which the identities of the individual </span>substances<span> are retained.</span>
Whole milk is healthier T)(T
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<span>The platypus lays eggs like a reptile is an additional piece of information will be most helpful to Julia to properly build her phylogenetic tree. </span>
B) Hypoxia of EPO-producing cells
The molecular clock tracks down nucleotide sequences for DNA or amino acids that contain sequences of proteins. Scientists use this to deduce the time in history where life forms possibly have diverged. This technique is also known as a gene clock or an evolutionary clock.
