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According to this cladogram, primates are most closely related to - (a)  

• Amphibians
• Rodents and rabbits
• Crocodiles
• Birds

According to this cladogram, birds are LEAST related to - (a)  

• Amphibians
• Sharks
• Ray Finned Fish
• Crocodiles

Which trait do only humans have, according to the cladogram? (a)  

• jaws
• mammary glands & hair
• terrestrial during all life stages
• opposable thumbs

According to the cladogram, which organism is most distantly related to the human?

• crayfish
• rat
• perch
• frog

On the cladogram, which organism is the closest relative of the human?

• Frog
• Hare
• Caiman
• Parrot

On the cladogram, which organism is the closest relative of the parrot?

• Frog

• Hare

• Caiman

• Parrot

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.

All the animals to the right of the hagfish would have the common characteristic of -

• Fur
• Claws or nails
• Lungs
• Jaws

What is the closest relative of humans shown in this diagram?

• horse

• turtle

• monkey

• dog

Answer explanation

The the lines for human and monkey meet at a "V", which indicates their common ancestor.

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.