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Water
burst
bloom
bouquet
Correct!
A mass or group of cyanobacteria in water is called a bloom. Some blooms release poisons and contaminate the water. Agricultural waste can pollute waters and increase the growth of cyanobacteria.
Common name: blue-green algae
Age: species similar to the ones we see today first appeared on Earth about 3.5 billion years ago
Size: you need a microscope to see it; groups are big enough to see with the human eye
Habitat: shallow water, marine and freshwater; damp areas; tree trunks; and in surface soils
Characteristics: pollution can help it grow; can cause a smelly, thick scum in water
A mass of cyanobacteria in water is called a:
You can tell whether water contaminated by cyanobacteria is poisonous by the way it looks and smells.
Fact
OR
Fiction
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Fiction
It can be impossible to tell whether water contaminated by cyanobacteria is poisonous just by smelling or looking at it. A sample must be taken and analyzed in a laboratory.
Some kinds of cyanobacteria that live freely in the open water of ponds or the sea can float or sink, depending on how much light there is.
Fact
OR
Fiction
?
Fact
Some kinds of cyanobacteria use gas sacs to alter their buoyancy. They can float to the water surface or sink to the bottom. This helps them get light and nutrients at the best times.