Both analogies and homologies are always used to create phylogenetic trees. In fact, analogies often provide more information regarding the evolutionary relationships between different species than do homologies. A. TrueB. False

Option B; False.

Explanation: Analogies and Homologies are not always used in the creation of phylogenetic trees.

Phylogenetic trees are constructed according to the evolutionary relationships that exist between organisms based on homologous traits.

Phylogenetic trees are most-commonly used to depict the relationships that exist between species. In particular, they clarify whether certain traits are homologous (found in the common ancestor as a result of divergent evolution) or homoplasy (sometimes referred to as analogous: a character that is not found in a common ancestor, but whose function developed independently in two or more organisms through convergent evolution). 

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

option a and d is the correct answer

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