Question

two phylogenies are shown below. the phylogenies differ in their assumptions about what trait difference contributed to the early divergence of these species. select the two options that list the correct assumption for each phylogeny?

Answer 1

The phylogenetic trees always show increased branching, representing increased diversity over time.

Option C is correct.

Phylogenetic trees, while commonly depicting branching patterns, do not necessarily always indicate increased diversity over time and the trees illustrate the evolutionary relationships between different species or groups of organisms.

The branching points, or nodes, represent common ancestors, and the length of branches can vary. Diversity in phylogenetic trees is shaped by various factors, including speciation, extinction, and adaptation.

Adaptation and evolutionary changes may also result in diversification or convergence, influencing the branching pattern. Over time, both increased and decreased diversity can occur in different lineages.

complete Question:

Select the correct statement about phylogenetic trees.

A. All phylogenetic trees are similarly shaped.

B. Phylogenetic trees may expand quickly to maximum width and then narrow over time.

C. Phylogenetic trees always show increased branching, representing increased diversity over time