Octopus and spider both have eight legs then why are they not classified in the same class?
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Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.
Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.Spiders are in the arthropod phylum. Octopuses are in the mollusk phylum of animals. The arthropods and the mollusks branched off from the same ancestor at least 700 MYA. So this makes them very distantly related. So your answer is a qualified ‘no’.
Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.Spiders are in the arthropod phylum. Octopuses are in the mollusk phylum of animals. The arthropods and the mollusks branched off from the same ancestor at least 700 MYA. So this makes them very distantly related. So your answer is a qualified ‘no’.Your question is just a little ambiguous because all organisms on earth are related. All pairs of species are related, but some pairs of species are more closely related than other pairs of species. So I will go into a small amount of background information to make it clear what ‘related’ means in this case.
Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.Spiders are in the arthropod phylum. Octopuses are in the mollusk phylum of animals. The arthropods and the mollusks branched off from the same ancestor at least 700 MYA. So this makes them very distantly related. So your answer is a qualified ‘no’.Your question is just a little ambiguous because all organisms on earth are related. All pairs of species are related, but some pairs of species are more closely related than other pairs of species. So I will go into a small amount of background information to make it clear what ‘related’ means in this case.Theoretically, all organisms are descended from the same ancestor species in the very first generation of Earth’s history. This most recent common ancestor (MRCA) of all organisms was probably a bacterium that lived between 3 and 4 BYA. All species of organisms branched off in later generations.
Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.Spiders are in the arthropod phylum. Octopuses are in the mollusk phylum of animals. The arthropods and the mollusks branched off from the same ancestor at least 700 MYA. So this makes them very distantly related. So your answer is a qualified ‘no’.Your question is just a little ambiguous because all organisms on earth are related. All pairs of species are related, but some pairs of species are more closely related than other pairs of species. So I will go into a small amount of background information to make it clear what ‘related’ means in this case.Theoretically, all organisms are descended from the same ancestor species in the very first generation of Earth’s history. This most recent common ancestor (MRCA) of all organisms was probably a bacterium that lived between 3 and 4 BYA. All species of organisms branched off in later generations.Humans (genus Homo) and chimpanzees (genus Pan) are in the same phylum. However, they are in different genuses.The human genus (Homo) and the chimpanzee genus (Pan) branched off about 8 MYA. The arthropod phylum and the mollusk phylum branched off at least 700 MYA.
Spiders and octopuses are not closely related. They are in different phyla. Phylum is a very large taxon.Spiders are in the arthropod phylum. Octopuses are in the mollusk phylum of animals. The arthropods and the mollusks branched off from the same ancestor at least 700 MYA. So this makes them very distantly related. So your answer is a qualified ‘no’.Your question is just a little ambiguous because all organisms on earth are related. All pairs of species are related, but some pairs of species are more closely related than other pairs of species. So I will go into a small amount of background information to make it clear what ‘related’ means in this case.Theoretically, all organisms are descended from the same ancestor species in the very first generation of Earth’s history. This most recent common ancestor (MRCA) of all organisms was probably a bacterium that lived between 3 and 4 BYA. All species of organisms branched off in later generations.Humans (genus Homo) and chimpanzees (genus Pan) are in the same phylum. However, they are in different genuses.The human genus (Homo) and the chimpanzee genus (Pan) branched off about 8 MYA. The arthropod phylum and the mollusk phylum branched off at least 700 MYA.So compared to the pair of human and chimpanzee, the pair of spider and octopus are relatively unrelated.