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Answer:
Brown algae and dinoflagellates.
Explanation: In a phylogenetic tree, two species are considered as most closely related if they share a more common ancestor than the others. The nodes of tree represent the common ancestor, while the tips of branches represent species originated from that ancestor
Analysis is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it.
Because they do not realize how valuable it is.