(Biology) - Chapter 12 Powerpoint

The smallest taxonomic group that would contain closely related Mammal orders?

• Genus

• Order

• Species

• Family

• Class

The smallest taxonomic group that would contain closely related Canis species?

• Genus

• Species

• Family

• Order

• Class

Discuss: Identify analogies and homologies for these three organisms.

Refer to the diagram provided. What shared derived character separates rabbits from other groups here? What shared derived character separates rabbits, lizards, and frogs from fish? What ancestral characters are not useful in making this phylogeny?

• Hinged jaw

• Legs with amnion

• Hair

• Egg with amnion

• Eukaryote

Refer to the diagram provided. This tree shows that:

• Lizards evolved from frogs

• Animals with hinged jaws evolved from lamprey

• Both

• Neither

Discuss: Where on this phylogenetic tree did major evolutionary events occur?

Which of these taxonomic groups is valid?

• Reptiles

• Mammals

• Reptiles and Mammals

• Mammals and Birds

• Birds