<span>Because they are made of the combination of two simple sugars, you might correctly guess that disaccharides
are known as complex sugars. ... Lactose (milk sugar) comes from
glucose and galactose joining. Maltose (malt or beer sugar) comes from
two glucose molecules joining.</span>
A scientist may use molecules - enzymes, proteins, DNA, RNA - to test for similarities, because if anatomy alone was used, it would be difficult to link traits and characteristics between the two organisms. For example, a rabbit has an endoskeleton and a closed circulatory system, while a fly has an exoskeleton and hemocoel.
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<span>Eutrophication or more precisely hypertrophication, is the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This process induces growth of plants and algae and due to the biomass .... Although eutrophication is commonly caused by human activities, it can also be a natural process, ...</span><span>
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