Which of the following correctly describes the first animals that appeared? a.) these were large creatures, similar to dinosaurs b.) these were bony creatures that lived only in wet environments c.) these were soft and boneless creatures d.) these were large creatures that lived only in dry environments

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

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b would be the answer