cladograms

What is the human most closely related to?

• Fish

• mouse

• Salamander

• Human

Which group of animals on this tree are most closely related to birds?

• Saurischian dinosaurs

• Ornithischian dinosaurs

• Crocodiles

• None of these are related to birds

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

• Point A

• Point B

• Point C

• Point D

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

• Fur
• Claws or nails
• Lungs
• Jaws

The diagram below represents possible genetic relationships between groups of organisms.

Which statement is a valid conclusion that can be drawn from the diagram?

• Insects are more complex than mammals.

• Earthworms and sea stars have a common ancestor.

• Snails appeared on Earth before corals.

• Sponges were the last new species to appear on Earth.

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 letter represents the most recent common ancestor of sponges and mushrooms?

• A

• B

• C

• D

• E

Which trait should go where A is on the cladogram?

• eyes

• feet

• lips

• hat