Propose an explanation for why annelids and arthropods were thoug...

Question

Propose an explanation for why annelids and arthropods were thought to be closely related, before phylogenetic analyses in the late 1990s.

Accepted Answer

Hello everyone and welcome to today's video. So which of the following characteristics is shared by analysts and arthropods. Beginning by answer choice. A hard exoskeleton. While this hard exoskeleton is going to be a characteristic that is only present in arthropods. So it is not present in analysts. So we're going to cancel this out. Then we have answer choice B closed circulatory system. Will analysts have a closed circulatory system? So this is great. However, arthropods have what we called and open circulatory system. So this characteristic is also not sure by both of them. So we're going to cancel this out. Then we have jointed appendages. This characteristic is again only going to be present in arthropods. These analysts are not going to have open appendixes. So appendages so we're going to cancel this out as well. Then we have C segmented body. Well this characteristic is actually going to be present in both the analysts and the arthropods actually is also going to be present in court dates. It's a very common characteristic in these groups of animals. So we're going to highlight answer choice C as the final answer to our problem. I really hope this helped you and I hope to see you on the next one

Propose an explanation for why annelids and arthropods were thought to be closely related, before phylogenetic analyses in the late 1990s.

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