Mammal Skull Characteristics

Which of the dental formulas below belong to the opossum skull in this picture?

• I-6/2 C-0/0 P-1/1 M-4/4

• I-5/4 C-1/1 P-3/3 M-4/4

• I-1/1 C-0/0 P-0/0 M-3/3

• I-3/3 C-1/1 P-4/4 M-2/2

The term in mammalogy used to describe mammals having one set of teeth in which none are replaced in a later stage of growth.

• hypsodont

• diphyodont

• monophyodont

• polyphyodont

The term in mammalogy used to describe mammals having teeth that are continuously replaced. For example the molar teeth of elephants are continually replaced by moving forward from the back pushing out the old ones.

• monophyodont

• brachydont

• diphyodont

• polyphyodont

Tags

NGSS.MS-LS4-2

This picture represents the pointed, projecting or elevated features on the crown of a tooth.

• cusps

• root

• dentine

• fangs

Tags

NGSS.MS-LS4-2

Letter A represents what part of the tooth anatomy?

• Enamel

• Dentine

• Crown

• Root

The letter C in the picture represents what part of the tooth anatomy?

• Pulp

• Dentine

• Enamel

• Gums

The letter B is pointing to which part of the tooth anatomy?

• Crown

• Cusp

• Enamel

• Dentine

Horses and and cows have teeth that have short roots but high crowns providing extra surface area for the wear and tear necessary for a fibrous diet. What is the name for this type of teeth?

• Hypsodont

• Bracydont

• Monophyodont

• polyphyodont

Letter E represents what part of the tooth anatomy?

• Crown

• Dentine

• Pulp

• Cementum

This term refers to mammals who have one set of "deciduous" or baby teeth and a consecutive set of "permanent" teeth that are stronger and more durable.

• Diphyodont

• Heterodont

• Hypsodont

• Brrachydont