Question

Examples of lophodont teeth are?
(a) Incisor and canine
(b) Premolar and molar
(c) Canine and premolar
(d) Premolar and incisor

Answer 1

Hint: It is transitional teeth. They have at least two cusps. It has large, flat teeth at the back of the mouth. They are more developed in mammals. They are utilized fundamentally to granulate food during biting.

Complete answer
Herbivores productively and altogether grind their food, with the help of teeths.
The expansion of hard enamel edges to the teeth improves their grinding activity. These teeth are frequently either lophodont or selenodont. Lophodont teeth have lengthened edges called lophs that run between cusps. Lophs might be situated anteroposteriorly, or they run among labial and lingual pieces of the tooth. Extreme lophodont is found in modern elephants (Elephantidae) and a few rodents.

Additional information
Premolar teeth by definition are perpetual teeth distal to the canines, gone before by deciduous molars.
There is always one large buccal cusp, especially so within the mandibular first premolar. The lower second premolar nearly always presents with two lingual cusps.
The lower premolars and therefore the upper second premolar usually have one root. The upper first usually has two roots, but can have just one root, notably in Sinodonts, and can sometimes have three roots.

So the correct answer to the above question is ‘Premolar and molar’.

Note:
The four first premolars are the chief normally eliminated teeth, in $48.8\mathrm{\%}$ of situations when teeth are taken out for treatment (which is in $45.8\mathrm{\%}$ of orthodontic patients). The evacuation of just the maxillary first premolars is the second likeliest alternative, in $14.5\mathrm{\%}$ of cases.
The crown of the molars and premolars is folded into a good range of complex shapes in mammals. The basic elements of the crown are the more or less conical projections called cusps and therefore the valleys that separate them.