Answer:
Homologous structures have the same ancestry, but may no longer serve the same function. For example, the bones that make up human fingers were inherited from an ancestor that's shared by all mammals.
<span>The resulting movement is scapular protraction and rotation.The scapula is moved along the chest wall. The muscles involved in this process are the serratus anterior, which is the prime mover. Pectoralis minor and major, the latter acting through the humerus, may assist (act as synergists).</span>
Whales are closely related to hoofed mammals with an even number of toes, such as horse, because they evolved from them. Before whales were what we know them as today, they were relatively similar to horses. They used the water to flee from predators, and they evolved slowly to heighten their swimming ability, eventually becoming modern day whales. Fish have always been aquatic animals that have gills. Whales cannot breathe underwater, so they take in oxygen the same way a horse does. Also, both horses and whales are mammals that give birth to their offspring and are warm-blooded. Fish lay eggs and are cold-blooded.
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Color I believe because if a diamond was the same color as coal(black) you couldn’t tell a difference
