The answers are wind, water, and gravity.
They both have 3 coelom usually develop larval forms known as trochophores<span />
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Answer:
Phylogeny.
Explanation:
Classification may be defined as the process of classifying the organisms into same or different groups depending on their similarities and differences. Carolus Linnaeus is known as the father of taxonomy.
Carolus believes in the fixity of species but the statement proves wrong as the species evolve with time. Linnaeus had been uncomfortable with the phylogeny or the evolution of the organism. His idea of the fixity of species is in contradiction with the phylogeny.
Thus, the correct answer is option (4).