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BartSMP [9]
3 years ago
11

CAN SOMEBODY PLEASE HELP I WILL MARK BRAINLEST IF U DRAW A MODEL PLEASE HELP

Social Studies
1 answer:
Anika [276]3 years ago
3 0

Fireflies flicker and flash as they dart through their mating dances, all the while transforming a lovely summer night into a magical evening. While the bioluminescence that allows these insects to glow and gain the moniker “lightning bugs” creates wonder in humans, it is a not-uncommon feature in the animal world, especially for fish and other marine species.

National Geographic defines bioluminescence as light that occurs from the reaction between two chemicals within a living organism: the compound luciferin and either luciferase or photoprotein. The ability to produce light is not just a flashy feature; bioluminescence can give the animal a competitive advantage. For example, deep-sea vampire squids eject glowing mucus to startle predators, and hatchet fish use light-producing organs to adjust reflections off their bodies, masking themselves to prey who are hunting them from below. Other animals that glow or flash to get ahead at sea and on land include plankton, coral, and glowworms.

For decades, scientists and medical researchers studied bioluminescence in nature and have adapted fluorescent genes as biomarkers for many applications. That is how GloFish found their way into home aquariums across the country.

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Hello,

The answer is option D "<span>a diary entry from an American homemaker in 1933".

Reason:

The answer is option D because the diary of a homemaker from 1933 is the original source of a subject that people can write off of and learn about. A primary source is the original source of a subject for example of homemaking. Its not option A because a magazine summary of the history of voting is not the original version of the history of voting. Its also not option B because a blog entry about how Roosevelt is the most important president is just a opinion. Its also not option C because a book about the civil war that was written by a historian wouldn't be the original source since how he or she gets the information from other sources in order to write the book. 

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit</span>
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