Which one of the following is a matching set of a phylum and its three examples?
- Cnidaria — Bonellia, Physalia, Aurelia
- Platyhelminthes — Planaria, Schistosoma, Enterobius
- Mollusca — Loligo, Teredo, Octopus
- Porifera — Spongilla, Euplectella, pennatula
The Correct Option is C
Solution and Explanation
Mollusca is a phylum that includes various organisms like squid (Loligo), shipworm (Teredo), and octopus (Octopus).
So, the correct option is (C): Mollusca — Loligo, Teredo, Octopus
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.