DV - Classification (Clados and Phylos) - Z

What is the common ancestor of Letters A, B, C, D, E?

• 1

• 2

• 3

• 4

What distinguishes zebras from from giraffes?

• un-branching horns (in males)

• even number of toes

• fur

• carnivorous teeth

Where is the alligator and T. rex's common ancestor?

• Point A

• Point B

• Point C

• Point D

Which trait should go where A is on the cladogram?

• eyes

• feet

• lips

• hat

According to this tree, which of these animal phyla are most closely related?

• Arthropoda & Mollusca

• Arthropoda & Chordata

• Chordata & Mollusca

Which two living organisms are most closely related?

• A and B

• B and C

• C and D

• B and D

• A and D

Answer explanation

B and C share the most recent common ancestor, F.

Based on the phylogenic tree, which of these shows a correct ancestral lineage?

• E is an ancestor to F and G
• C is an ancestor to D and E
• B is an ancestor to A
• E is an ancestor to H and I

According to this evolutionary tree, which organism has amniote egg, jaws, and diapsid skull, but NOT legs underneath.?

• Dinosaur

• Anapsids

• Synapsid "Reptiles"

• Jawed Fish

• Lizards

Which of the following organisms are the LEAST related?

• Zebra and Tiger

• Polar Bear and Mountain Lion

• Polar Bear and tiger

• Mountain Lion and Tiger