Question

When light, especially red and blue light, is shone on the tubes, oxygen bubbles accumulate on the inside of test tubes 1 and 2. Chemical analysis of test tube 1 indicates the presence of a chemical that is toxic to fish and humans. Chemical analysis of test tube 2 indicates the presence of substantial amounts of silica. Microscopic analysis of organisms in test tubes 1, 3, and 4 reveals the presence of permanent, membrane-bounded sacs just under the plasma membrane. Microscopic analysis of organisms in test tube 3 reveals the presence of an apicoplast in each. Microscopic analysis of the contents in test tube 4 reveals the presence of one large nucleus and one small nucleus in each organism. Test tube 1 contains ________.

Answer 1

Test tube 1 contains very high concentrations of Aluminium & Mercury

Step-by-step explanation:

It is because when the UV light is passed through Tube 1, it oxidizes the Aluminium and Mercury already present in water and that's why the bubbles are formed in the test tube.

As we know, high levels of aluminium i water cloggs fish gills and ultimately death occurs. The fish is then consumes by Human and high levels of aluminium have been proved to contribute to Alziehmers Disease...

Mercury is highly toxic and mercury poisoning is common with fish consumption.