The dental formula of carnivores is represented by
A. I 0⁄3, C 1⁄1, pm 4⁄4, m 2⁄3
B. I 0⁄2, C 1⁄1, pm 4⁄4, m 2⁄4
C. I 2⁄3, C 2⁄1, pm 3⁄4, m 2⁄3
D. I 3⁄3, C 1⁄1, pm 4⁄4, m 3/3
Dental formula is simply the arrangement of teeth in the mouth of an animal. These arrangements usually reflect the mode or type of feeding habit, as well as the source of nutrition for an animal.
Now for the right answer to the above question:
- Option A is incorrect; I 0⁄3, C 1⁄1, pm 4⁄4, m 2⁄3 is not the dental formula for carnivores, this is because carnivores actually have upper incisors.
- Option B is also incorrect; I 0⁄2, C 1⁄1, pm 4⁄4, m 2⁄4 not the dental formula for carnivores. Carnivores have upper incisors.
- Option C also not the answer.
- D is correct. The dental formula for carnivores is I 3⁄3, C 1⁄1, pm 4⁄4, m 3/3 = 22 × 2 = 44
You may please note that:
- Carnivores have same ratios of incisors, canines, premolars and molars.
Use the questions and answers session to raise further questions and deal more on this topic…
/ culled from 2016 JAMB-UTME biology past question 22 /