During the embryonic stage, growth is proximodistal, which means that

The word promixodistal comes from Latin terms meaning "away from the center". This refers to the stage of development where growth occurs from the center of the body to the extremities. For example, an infant learns to use its arms and legs first (to crawl), then its hands (to reach and grasp), and finally its fingers (to pick up and use objects).

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Advection fog occurs when warm air blows over a cold surface like snow and since tropical water is warm advection fog rarely forms over it