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rain gauge, snow gauge...
Answer:
A marine biologist is more in demand. A marine biologist is a scientist who studies plants and animals that live in the ocean. A marine biologist seeks to understand ecosystems, biology and behaviors while analyzing how different marine species interact with each other. Besides studying how ocean life affects itself, marine biologists may also examine the impact that human interaction has on marine biology. Explanation:
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Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.
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