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In an endothermic reaction, in going from the reactants to the products at the same temperature, the value of q is negative.
Identical Twins
Twins that develop from a single fertilized egg, sharing the same genetic material, and are also known as monozygotic twins.
Fraternal Twins
Twins born from two different eggs fertilized by two different sperm, resulting in siblings that are genetically unique from each other.
Brother and Sister
A familial relationship describing male and female siblings who share one or both parents in common.
Heredity
The genetic transmission of characteristics from parent to offspring.
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