Mammalian teeth The Need for food Animal Survival SG Biology Learning Outcomes (5) • To know the different structure and functions of each type of tooth • To understand the adaptations of a herbivore, omnivore and a carnivore to feeding. Feeding in mammals • Mammals have teeth which may be used to bite pieces of food and to chew it into smaller pieces before swallowing. • The shapes of teeth are suited to their function. – Incisors and canines are used for biting – Premolars and molars are used for chewing and crushing food. Patterns of Teeth Human Jaw Teeth • There are different types of teeth, each specially shaped to perform a particular job. – Incisor - A broad flat sharp tooth found at the front of the mouth. Designed for biting and cutting food. – Canine - A sharp pointed tooth for piercing flesh and tearing. – Pre-molar & molar - A broad flat tooth with many cusps. Its rough surface is used for crushing, grinding and chewing food Carnivore adaptations • Look at the dog skull, and the diagrams of a dogs skull. • With the aid of a diagram – make notes explaining how the dogs teeth and jaws are adapted for a carnivorous diet. Herbivore adaptations • Look at the sheep’s skull, and the diagrams of a sheep skull. • With the aid of a diagram – make notes explaining how the sheep's teeth and jaws are adapted for a herbivorous diet.
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