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A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.
They are going to stop or divide into two cells
Answer:
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<h3><em>Crust is the outermost shell of a terrestrial planet</em><em>.</em></h3>
<h3><em>Mantle is the mostly-solid bulk of Earth's interior. </em></h3>
<h3><em>Core is the most inner part if the Earth. It is made of two layers: the outer core, which borders the mantle, and the inner core. </em></h3>
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Answer: Symbiogenesis
The process responsible for the evolution of mitochondria and chloroplasts in eukaryotes is Symbiogenesis or endosymbiotic theory.
This theory states<span> that </span>mitochondria and chloroplasts originated from bacteria entering a eukaryotic cell to form a symbiotic relationship.
Among the pieces of evidence supporting symbiogenesis are that new mitochondria and plastids are formed only through binary fission and the striking similarities between bacteria and these organelles<span><span /> (mitochondria and chloroplasts). Similarities include 1) They have their own DNA, which is separate from the DNA found in the nucleus of the cell. and 2) both organelles use their DNA to produce many proteins and enzymes required for their function</span>
