The Reptiles class is represented by four orders: Order Scaly (Suborders: lizards and snakes); Turtle Squad; Detachment Crocodiles; Detachment Beakheads (1 species – tuatara). Squad Scaled The Scaled
Digestive system The digestive system of reptiles, like that of other vertebrates, is represented by the digestive tract and glands. Digestive tract: mouth – pharynx – esophagus –
The skeleton and muscles are part of the musculoskeletal system. The skeleton provides support for the body and organs of movement, protects the most important organs. Due to
The class Reptiles, or Reptiles, has about 6 thousand species. These are real land animals, which, unlike Amphibians, do not have a close connection with water. External structure
Excretory system The excretory system is represented by a pair of primary trunk kidneys. From the blood passing through the vessels of the kidneys, substances unnecessary to the
Respiratory system Respiration is skin-pulmonary. There are no trachea and bronchi. The respiratory surface of the lungs is small. The larvae have gill respiration. For the first time,
Digestive system The digestive system is represented by the digestive tract and glands. Digestive tract: mouth – pharynx – esophagus – stomach – intestines (thin and thick) –
The skeleton provides support for the body and organs of movement, protects the most important organs. Due to the work of the muscles, movement is carried out. Muscles
The class Amphibians, or Amphibians, includes a small group of the most primitive terrestrial vertebrates (about 2.5 thousand species). Amphibians live in water and on land. Reproduction and
Reproductive system Fish are usually dioecious animals. The sex glands are represented by paired testes (milk) in males and ovaries in females. Eggs – eggs – ripen in
