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Two dimensions. Straight sides. Congruent (equal-length) sides. An interior and exterior. Equal interior angles. Equal exterior angles.

Explanation:

All shapes contain right angles. All shapes contain one pair of equal sides. All shapes contain parallel sides. All shapes are equilateral

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the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.