You live in a city in florida on the gulf of mexico and are trying to figure out why the water at the beaches turned bright green for several months during the summer. you discover the green comes from a photosynthetic organism that grew at great numbers due to fertilizer spill in a nearby river. you have isolated the organism and are now testing its dna. you extract all the dna from your sample and find that there are three distinct kinds of dna. which of the following organisms could have been responsible for the bloom: fungus, bacteria, or protist? how do you know?

Blue-green algae affect freshwater, and it has a direct correlation to agricultural and urban runoff.

The heavy rains last spring most likely caused Lake Okeechobee to discharge water containing blue-green algae into rivers and canals. The bright green sludge oozed onto docks, dams and rivers and through tributaries into the ocean.

Blue-green algae (cyanobacteria) are a group of prokaryotic, autotrophic microorganisms that contain the photosynthetic pigments (chlorophyll and phycocyanin), Therefore, the DNA shows bacteria

Bacteria is the correct answer

not too sure but maybe in the hot springs.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.