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Possible symbiotic or endosymbiotic relationships that gave rise to the first eukaryotic cells
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Relationships between infants and caregivers
Long-term relationships, especially those who are married, having a child
A square matrix P is called a permutation matrix if each row and column of P contains exactly ...
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin