In this article we will discuss about the General Characters and Classification of Class Amphibian– The Vertebrates with Dual Life. General Characteristics of Class Amphibians: Some of the general characters of class amphibian are listed below: 1. They are the first cold blooded vertebrates from evolution point of view which came to the land. Class Amphibian includes about 3,000 species. [...]
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 [...]