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

The correct answer is C) Phylogenetic trees always show increased branching, representing increased diversity over time.

Explanation:

A new branch in phylogenetic trees appears when new species appear, meaning that diversity increases. The appearing of new branches can show speciation processes and it can also help to understand how a certain lineage evolved through time or the specific divergence in one point.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.