Common Ancestry Overview

Front

According to the diagram, which pairs of insect groups likely share the most homologies? Options: aphids and bees, moths and mosquitoes, bees and wasps, wasps and beetles.

Back

bees and wasps

Front

According to the diagram, which of the following pairs of insect groups likely share the least homologies? beetles and moths, grasshoppers and mosquitoes, mosquitoes and flies, flies and moths

Back

grasshoppers and mosquitoes

Front

Which species changed the least over time? (HINT: more breaks in the lines from beginning to end = more change) Options: bees, beetles, flies, aphids

Back

aphids

Front

Which evidence of common ancestry is being studied in this visual? Options: biogeography, fossil record, anatomical homology

Back

fossil record

Front

Which evidence of common ancestry is being studied in this visual? Options: biogeography, fossil record, anatomical homology

Back

anatomical homology

Front

Scientists compare the limbs of organisms to look for evidence of common ancestry. These limbs provide evidence of common ancestry because they -

Back

have the same basic structure

Front

Which statement best represents the illustration to the right?

Back

Wolves, bison, and horses share homologous structures.

Front

Based on the diagram, which pair of organisms most likely share the most recent common ancestor?

Back

bison and horse

Front

What is the most important question to ask when analyzing homologies to determine common ancestry?

Back

Are the structures similar?

Front

Which two species are most closely related? (HINT: Lower number on the table above = more closely related)

Back

Species 3 & 4