Final answer:
The correct term for an animal that has two sets of teeth throughout its lifetime is a. 'diphyodont.' This includes a set of baby teeth replaced by a set of permanent teeth.
Step-by-step explanation:
The term for the dental pattern where an animal has two sets of teeth in its lifetime is known as a. diphyodont.
This term refers to animals that develop a set of deciduous, or "baby," teeth, which are later replaced by a set of permanent teeth.
Most mammals, including humans, exhibit this dental pattern. During early childhood, deciduous teeth emerge, followed by the gradual replacement with permanent teeth, usually completing around the age of 12.
This process is distinct from polyphyodonty, where animals can replace their teeth many times throughout their lifetime, and monophyodonty, where only one set of teeth is developed.
Additionally, the different types of teeth such as incisors, canines, premolars, and molars are adapted to different kinds of mastication or chewing, according to the dietary needs of the animal.