Cladograms

What distinguishes zebras from from giraffes?

• un-branching horns (in males)

• even number of toes

• fur

• carnivorous teeth

Tags

NGSS.MS-LS4-2

What characteristic do all the organisms on this cladogram share?

• Being bi-pedal & having language

• Complex brains

• Fully binocular vision

• Partial binocular vision & opposable thumbs

Tags

NGSS.MS-LS4-2

According to this diagram, is the pig more closely related to the dog or kangaroo?

Answer explanation

Dogs are closer to pigs on this diagram because they share a more recent common ancestor with pigs. Fun fact: pigs and dogs are mammals. Kangaroos are marsupials; they carry their young in a pouch.

What organism on this diagram would have DNA most similar to the penguin?

Answer explanation

The lines to chicken and penguin meet at a "V", which indicates their common ancestor. Ducks and pigeons are also birds, but they are more distantly related from the penguin.

Tags

NGSS.MS-LS4-2

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.

Tags

NGSS.MS-LS4-2

You look at two species and see very similar amino acid sequences. What does this likely tell you?

• These are the same animal.
• These animals have a common ancestor.
• These animals are not likely related.
• These animals are likely becoming one species.

Tags

NGSS.MS-LS4-2

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

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between
arachnids and insects?

• Jointed legs
• Body segments
• Presence of eyes
• Presence of antennae

Tags

NGSS.MS-LS4-2

How would you describe this picture? butterly vs. bat wing

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

Tags

NGSS.MS-LS4-2

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

• Point A

• Point B

• Point C

• Point D

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2