A chemical defense mechanism is called bioluminescence.
As mentioned in the reaction, Ceratium fusus undergoes a special chemical reaction at night which helps them defend themselves from predators. During this reaction, light is produced inside a living organism. However, this type of reaction does not produce heat although it does produce light.
<h3>
What is bioluminescence used for?</h3>
The most well-known purpose of bioluminescence is to defend the organism against attacks by predators. This is because the light confuses or frightens predators.
Besides confusing the predator, the light can also alert large predators to approach the location of the organism, in this way this large predator will eat the predator that is threatening the organism which in our question, is Ceratium fusus.
Many marine organisms use the phenomenon of bioluminescence for their defense, in particular marine invertebrates, vertebrates, certain micro-organisms as well as certain fish and fungi.
Hence concluded that the bioluminescence characteristic of Ceratium fusus is being described.
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The SECOND graph represents selection that may lead to reduced variation. It is an example of stabilizing selection.
<h3>What is Stabilizing selection? </h3>
Stabilizing selection is a type of natural selection that leads to a decrease in the genetic variation of the population.
In Stabilizing selection, natural selection tends to favor an average phenotype and then can remove (select) extreme variations.
Stabilizing selection generates a modified bell curve graph in which the central portion is narrower and it is taller than the normal distribution bell shape.
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<span>Scientist rejected Wegener's hypothesis of continental drift at first because he did not have enough evidence to support his theory. He failed to provide a suitable mechanism that could cause the continents to move. </span>
Answer
0° C or 273.15 K or 32°F
Explanation
The ordinary freezing point of water is 0 degrees Celsius. This is also the melting point of water.However,when there is presence of impurities in the water, the freezing point depression occurs.In some conditions,water can remain in liquid state at -40 to -42 ° F.
It is a region in the stratosphere that absorbs most of the sun's ultraviolet radiation.
