46.51
the endosymbiotic theory to explain the origin of which structures?
mitochondria
ribosomes
nuclei
cell membranes
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Explanation:

Endosymbiotic theory states that the eukaryotic cells evolved by the symbiosis of unicellular prokaryotic cells such as bacteria and archaea. According to this theory, the animal cells and plant cells are believed to possess mitochondria and chloroplast respectively through endosymbiosis

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.