Answer:
Since life on Earth predates photosynthesis, the exploration of this deep-water environment that lacks any source of light could provide information on what those life forms looked like.
Explanation:
It is a mixture.
take salt water for example if you boil the water the salt will be left behind. salt water on its own is not a pure substance a pure substance would be just the water by its self.
hope that helps.
Based on DNA sequences, it is believed that changes in nucleotide sequence between two species are equivalent to the time that has elapsed since the two species diverged from their common ancestor. Gene sequencing is being used in addition to morphology to determine evolutionary relationships between organism. Homologous sequences show greater evolutionary relationship
<span>It involves the use of oxygen and the release of carbon dioxide. Basically, when you breath in, the cells use the oxygen and transfer it through your body and the wasteful byproduct is the carbon dioxide that is released into the air back. Which is good because plants then use that and release oxygen.</span>
