In this article we will discuss about the classification of amphibians. Sub Class (1) Labyrinthodontia (Folded Teeth): 1. The name Labyrinthodontia is derived for the structure of teeth. 2. In a cross-section the teeth shows a complete radiating infoldings of the enamel surface. This type of teeth is also present in rhipidistian crossopterygians. 3. The skull was massive and completely [...]
The following points highlight the top eleven types of system in toads. The types are: 1. Muscular System 2. Digestive System 3. Respiratory System 4. Circulatory System 5. Arterial System 6. Venous System 7. Lymphatic System 8. Nervous System 9. Endocrine System 10. Excretory System 11. Reproductive System. Type # 1. Muscular System: The muscular system is composed of muscles [...]
The upcoming discussion will update you about the difference between arteries, veins and capillaries. Difference # Arteries: 1. Tunica adventitia: Moderately developed 2. Tunica media: Thick and well-developed. 3. Tunica interna: Elastic fibres are present. 4. Elasticity: Highly elastic. 5. Lumen: Proportionately smaller in diameter. Difference # Veins: 1. Tunica adventitia: Thicker 2. Tunica media: Thinner 3. Tunica interna: Elastic [...]