Below is a simplified phylogenetic tree of beetle species. There are a LOT of be

Question

Below is a simplified phylogenetic tree of beetle species. There are a LOT of beetle species (by some counts, beetles make up 22% of all described species)!
* Angiosperm means "flowering plant".

Given the data on this tree, which of the following statements is true? Choose all that apply. (Part 1)

Beetles evolved after flowering plants (angiosperms) evolved.

The trait of feeding on flowering plants evolved once in the beetle lineage.

What can you infer from this tree? Choose all that apply.

The trait of feeding on non-flowering plants is an ancestral trait in beetles. Numbers of Species: 25,000 I 400 28 33,400 25,000 400 26 33,400 feeds on non-angiosperm plants feeds on angiosperms O point of switch to feeding on angiosperms

Explanation / Answer

PART 1

The trait of feeding on non-flowering plants is an ancestral trait in beetles becauseSome beetles feed on angiosperms (flowering plants) and some do not.Hence, option iv is correct.

The tree is indicating that,

a. Over 99% of beetle species feed on angiosperms

b. Each pair of sister taxa comprise an angiosperm-feeding lineage and a non-angiosperm feeding lineage.

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