The 21st <span>Amendment is the only constitutional amendment that was ratified by approval of conventions in three-fourths of the states. The twenty first Amendment was ratified by the United States Congress on 5th of December in the year 1933. I hope that this answer has come to your help.</span>
Answer:
3. by studying plants and animals
Explanation:
Bringing harmful plants causes harm to the other species living there.
Destroying a lot of trees takes away a lot of homes from animals.
If you're just studying them no harm is being done.
Using pesticides can cause negative effects to the plants and animals who eat them.
Answer:
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Explanation:
Bioluminescence may be defined as the production as well as the emission of light by any living organisms. Mainly the marine organisms emits light and attracts other insects for predation.
In the experiment given in the context, the controlled jars with bioluminescent dinoflagellates shows a higher rate of predation than the nonbioluminescent dinoflagellates proves that the dinoflagellates can avoid being eaten by the increasing flashing and they attract other predators to eat the copepods which swims near them. This is because the it is given that the predation is more in the presence of bioluminesence.