Answer:
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.
A <span>peninsula is a "is a piece of land that is surrounded by water." Peninsulas are also known as islands because these are small pieces of land that are surrounded by water for example Hawaii, The Caribbean, etc...
Hope this helps!
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B. Is characterized by four different zones.
Disulfide bonds. is that an answer?
Answer:
A.because dna is our blood not sure
