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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

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.

What characteristic distinguishes amphibians from birds and reptiles?

• Amniotic egg

• Egg shells

• Vertebrae

• Hair/fur

What distinguishes zebras from from giraffes?

• un-branching horns (in males)

• even number of toes

• fur

• carnivorous teeth