Wednesday 10/25/23

A biologist sequences a gene shared by five different species. The percentage of sequence similarity for four different gene segments, A, B, C, and D, are shown in the table.

Using the data in the table, move the species labels into the blank boxes of the cladogram to show the relationships among the species.

b

c

d

e

a

4

1

5

2

3

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Animals with segmented bodies include organisms like worms, beetles, and butterflies. Scientists study the morphological variation among these organisms to determine their evolutionary relationships. A cladogram shows the relationships among groups of animals with segmented bodies.

Select the two organisms that are most closely related.

• beetles

• bristletails

• mayflies

• moths

• velvet worms

Tags

NGSS.MS-LS4-2

Animals with segmented bodies include organisms like worms, beetles, and butterflies. Scientists study the morphological variation among these organisms to determine their evolutionary relationships. A cladogram shows the relationships among groups of animals with segmented bodies.

According to the cladogram, how many common ancestors do roaches and beetles share?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-LS4-2

Animals with segmented bodies include organisms like worms, beetles, and butterflies. Scientists study the morphological variation among these organisms to determine their evolutionary relationships. A cladogram shows the relationships among groups of animals with segmented bodies.

Use the Add Point button to place a dot on the Relationships Among Segmented Animals cladogram to show where each common ancestor diverged into a different species.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Animals with segmented bodies include organisms like worms, beetles, and butterflies. Scientists study the morphological variation among these organisms to determine their evolutionary relationships. A cladogram shows the relationships among groups of animals with segmented bodies.

Rank the animals from most closely related (1) to least closely related (4) to the roaches, based on the relationships shown on the cladogram.

• Mayflies

• Velvet Worms

• Bristletails

• Moths

Tags

NGSS.MS-LS4-2

Get out the cladogram worksheet so we can go over the answers today.

• Ok

• Don't pick this one if you want to earn a point