Login to your BIOSCIENCE. account and enjoy increased access to BIOSCIENCE. content, ideas and unlock downloads. A selection of top articles hand-picked by our editors available only to registered users.
Educational and corporate subscriptions give institutions and students unlimited access to the BIOSCIENCE. Archive, an essential tool for health-science and biology education and research.
The pectoral girdle is connected to the vertebral column through muscles and ligaments. The pectoral girdle consists of two similar halves and each half is formed by three bones namely dorsal, ventral and antero ventral. The dorsal bone is known as scapula, the antero ventral bone is called clavicle and…
The skeletal system or skeleton includes the hard parts of the animal body. All the vertebrates possess the endoskeleton (inside the body). These are the living tissues develop from the interior layers of mesoderm of the body. The term skeleton denotes the endoskeleton in vertebrates. Skeleton plays a very important…
Scoliodon (fish) is a poikilothermic cartilaginous fish. It is commonly known as shark. Rana (frog) is an amphibian and poikilothermic animal. It is commonly called as frog. Living cells require energy for performing metabolic activities. This energy is provided by the oxidation of food materials present within the cells.…
Digestive System Of Bird: Eg: Pegion Digestive System (Columba) Digestive System Of Mammal: Eg: Rabbit Digestive System (Oryctolagus) Digestive System Of Reptile: Eg: Lizard Digestive System (Calotes) In previous topic we discussed about the comparative anatomy of digestive system of frog and shark. In this topic we discussed about the…
Comparison Of Integument Derivatives In Calottes (Reptile), Columba (Bird) And Oryctolagus (Mammal) Calotes is a terrestrial Reptile (lizard). Columba is flying bird. Oryctolagus is a herbivorous mammal. All these animals are grouped under Amniota and columba & oryctolagus are warm blooded animals. The integument forms the outermost covering of the…
COMPARATIVE ACCOUNT OF THE INTEGUMENT (SKIN) IN THE SCOLIODON (SHARK FISH) AND RANA (FROG) Scoliodon and Rana are poikilothermic animals. Scoliodon is an aquatic cartilage fish. Rana lives in water and on land-amphibian. In both the vertebrates the skin (integument) is the outermost covering of the body. It is multicellular…
Myxine (Hagfish) Petromyzon (Lamprey) 1. Hag fishes are scavengers. They penetrate into the dead fishes bodies and eat the tissues. 1. They are semi parasitic. But the Larvae(Ammocoetes) leads an independent life. 2. The body is. slender & eel-like 2. The body is cylindrical & stout. 3. They are exclusively…
Definition of Comparative Anatomy: is a one of the branches of biology studying the similarities and differences of internal organs between different groups of organisms. The following topics are detailed discussed in simple words. COMPARATIVE ANATOMY: INTEGUMENT IN FISH AND FROG COMPARATIVE ANATOMY: INTEGUMENT IN REPTILES, BIRDS AND…
REPRODUCTIVE SYSTEM OF MALE RABBIT AND FROG RABBIT FROG 1. Sexual dimorphism is well marked due to presence of penis and scrotal sacs containing tests only in male. 1. Not distinct. However, in male frog, base of first inner finger forms a thick nuptial pad during breeding season to clasp…
DIFFERENCES BETWEEN EXCRETORY SYSTEM OF RABBIT AND FROG RABBIT FROG 1. The kidneys in rabbit are metanephric 1. The kidneys in frog are mesonephric. 2. The kidneys are dark red, bean shaped situated in the middle of the abdominal cavity. 2. Kidneys are flat, dark red structures present towards the posterior end of the body cavity.…
VENOUS SYSTEM OF FROG (AMPHIBIAN) AND RABBIT (MAMMAL) - SIMILARITIES AND DIFFERENCES Rabbit - Venous system Frog - Venous system 1. Coronary veins collecting the blood from the wall of heart open into left precaval vein. 1. Coronary vein collecting blood from the wall of heart opens into anterior abdominal…
SIMILARITIES AND DIFFERENCES OF ARTERIAL SYSTEM OF MAMMAL (RABBIT) AND AMPHIBIAN (FROG) Rabbit - Arterial System Frog - Arterial System 1. The blood to different parts of the body and lungs is supplied by carotico-systemic trunk and pulmonary aortaoriginating from left ventricle and right ventricle respectively. 1. The blood to different parts of…
SIMILARITIES AND DIFFERENCES BETWEEN RABBIT HEART (MAMMAL) FROG HEART (AMPHIBIAN) Rabbit Frog 1. The heart of rabbit is four chambered with two auricles and two ventricles 1. The heart of frog is three chambered with two auricles and one ventricle. 2. Sinus venosus is absent as it is…
SIMILARITIES AND DIFFERENCES IN DIGESTIVE SYSTEM OF MAMMAL (RABBIT) AND AMPHIBIAN (FROG) Table 325.1: Similarities and differences between the digestive system of the mammal and amphibian Rabbit Frog 1. Omnivorous 1. Carnivorous 2. Alimentary canal consists of i. Mounth, ii. Buccopharyngeal cavity, iii. Pharynx, iv. Oesophagus, v. Stomach (a. Cardiac…
Comparison Of Digestive System Of Shark Fish (Scoliodon) With Digestive System Of Frog (Rana - Amphibian) Scoliodon is an aquatic cartilage fish, Rana is an amphibian. Scoliodon is a carnivorous and voracious feeder. Rana is also a carnivorous animal. To suit to the feeding habits the alimentary canal and…
Lizard, bird and rabbit, all these three animals are included in group Amniota (Amniote). They excrete the unwanted nitrogenous waste products from their body, and the process is called excretion. If the process of excretion does not take place properly in the body, they become poisonous. In Vertebrates, main excretory…
