I think they discovered chromosomes in DNA so that backed up his Idea
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According to a source the answer is <span><u>Cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.</u>
These cyanobacteria species were the first ones to "produce" oxygen as a by-product of the photosynthetic mechanisms which enables organisms to make their own food. </span>
The central point which is described as the abdomen is categorized into four quadrants is the abdominopelvic quadrants.
<h3>What are abdominopelvic quadrants?</h3>
The abdominal region is generally divided into quadrants, which is referred to as abdominopelvic quadrants.
The four abdominopelvic quadrants are as follows:
- Right-upper quadrant (RUQ).
- Left-upper quadrant (LUQ).
- Right-lower quadrant (RLQ).
- Left-lower quadrant.
Thus, The central point which is described as the abdomen is categorized into four quadrants is the abdominopelvic quadrants.
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Answer:
i dont really know what you mean by this, but this is the best answer i can give:
Cells are the smallest unit can be considered alive
Explanation:
i hope this helps you! <3
I would say the second, third, fourth and fifth