Unit 7 - Cladograms/Phylogenic Tree - Biology

What is the human most closely related to?

• Fish

• mouse

• Salamander

• Human

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

• Fur
• Claws or nails
• Lungs
• Jaws

According to this cladogram, primates are most closely related to -

• Amphibians
• Rodents and rabbits
• Crocodiles
• Birds

What is the purpose of a cladogram?

• To map the ancestral relationships and shared traits of different organisms.

• To trace the inherited traits of a single species over time.

• To check the likelihood of an offspring having a particular trait.

• To monitor mutations that arise among different populations.

What do both the squirrel and lion have in common that the other animals do not?

• They are both vertebrates

• They both have lungs

• They are both mammals

• They both lose their canine teeth.

What do amphibians, birds, prosimians and humans all have in common? Check all that apply.

• Hair

• Endothermic

• Eukaryotic

• Tetrapod

• Vertebrate

Which trait should go where A is on the cladogram?

• eyes

• feet

• lips

• hat

According to the diagram, what is the common ancestor of ALL organisms on the phylogenetic tree?

• B

• C

• D

• E

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

• 1

• 2

• 3

• 4

Using the cladogram, which two organisms are more closely related Lizards and Newts OR Lamreys and Sharks

• Newts and Lizards

• Lampreys and Sharks