Random question?

Which of these determines whether a fertilized egg develops into a toad, a snake, or a lizard?

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What part of an atom orbits around the center of the atom?

Random question?

The gametes of human males and females have the same number of chromosomes. Which best describes what happens to the chromosomes when typical male and female gametes combine to produce offspring?

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The cellular membrane surrounds every human cell. The membrane protects the cell and transmits information about the cell's surroundings to organelles inside the cell. What organ system provides a similar function in the human body?