Podcast
Questions and Answers
What is the main focus of the given text?
What is the main focus of the given text?
- Competitions
- Plant biology
- Animal nutrition (correct)
- General knowledge
What type of system is mentioned in the text?
What type of system is mentioned in the text?
- Digestive system (correct)
- Circulatory system
- Respiratory system
- Nervous system
What word is mentioned in the text as a type of eater?
What word is mentioned in the text as a type of eater?
- Vegan
- Omnivore
- Herbivore
- Carnivore (correct)
What is another term mentioned in the text for the digestive system?
What is another term mentioned in the text for the digestive system?
What is the competition number mentioned in the text?
What is the competition number mentioned in the text?
What type of dentition does a human have?
What type of dentition does a human have?
What type of teeth are used for cutting in humans?
What type of teeth are used for cutting in humans?
Which type of tooth has crescent shaped cusps?
Which type of tooth has crescent shaped cusps?
What type of dentition is characterized by teeth that can be replaced many times?
What type of dentition is characterized by teeth that can be replaced many times?
What type of teeth are present in toothed whales?
What type of teeth are present in toothed whales?
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Study Notes
Dental Structure
- Monophyodont: One set of teeth, e.g., platypus, toothed whale
- Diphyodont: Two sets of teeth, milk (temporary) and permanent, e.g., mammals
- Polyphodont: Teeth can be replaced many times, e.g., frog
- Isodont (Homodont): All teeth similar, e.g., toothed whale
- Heterodont: More than one type of teeth, e.g., four types in humans:
- Incisors (cutting)
- Canines (tearing)
- Premolars (grinding)
- Molars (grinding, not present in milk dentition)
- Pleurodont: Teeth fixed by sides to lateral surface of jaw ridge, e.g., reptiles
- Bunodont: Low cusps, e.g., humans
- Lophodont: Transverse ridges, e.g., elephant
- Solenodont: Crescent-shaped cusps, e.g., sheep
- Secodont: Cusps pointed, e.g., carnivores
Alimentary Canal
- Pharynx: It lies between the cal vary parts of nasal and oral cavities, connected to the eustachian tube and uvula
- Oesophagus: It communicates through the diaphragm and opens into the stomach
- Stomach: Part of the alimentary canal, located behind the diaphragm, has a cardiac part at the anterior end
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