Limited access

Upgrade to access all content for this subject

A student is comparing traits for five related bird species. She makes a chart and records data for four different traits. She then uses the chart to make a cladogram showing her hypothesized relationships among the species.

1 2 3 4 5
Head Size 20 cm 20 cm 20 cm 20 cm 20 cm
Beak Color Black Blue Blue Black Black
Eye Color Black Black Red Red Red
Eye Number 2 2 2 2 3

Created for Copyright 2016. All rights reserved.

Based on the chart, which of the following is an ancestral trait for all of these species?


20 cm head size.


Blue beak color.


Red eyes.


Three eyes.

Select an assignment template