Reptiles are cold-blooded, while mammals are warm-blooded. According to Lane "cold blooded animals can’t maintain its internal body temperature overnight "(life ascending, Nick lane, page 78) and any insulation provided (fur or blanket) to keep it warm fails since it cannot then absorb heat energy from the sun. It is safe to say that mammals can maintain its internal body temperature overnight.
A reptile can generate energy (as ATP) extremely fast, which enables it run really quick for few moments without breathing, and after this it takes a break to recover its energy , if not it is going to build up lactic acid and lead to cramping. This is because of the ratio of muscle fibers, capillaries and mitochondria it possesses. The body of a reptile (example lizard) has lots of tightly packed muscle fibers (to enable them run quickly).This leaves little space for the mitochondria (which provides energy, ATP) and capillaries (which is where exchange of air takes place). Lower energy is produced as the reptile runs. The muscle packed fibers ready to break down ATP to run is the reason Nick said reptiles are built for speed.
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Mammals have a higher metabolism rate compared to reptiles. Mammals also have high maximal metabolic rate. “The maximal metabolic rate is defined as the amount of oxygen consumed at full tilt, when we can push ourselves no further.”(Life ascending, Nick Lane, page 80) Aerobic capacity has a high role in determining stamina (most importantly, the rate of the mitochondria using the oxygen), along with other things such as genes,
From the data obtained in Tables 1-3, we were able to plot multiple graphs using excel. These graphs give a better representation of the data as seen in Figures 1-9. It can be seen that each figure shows a slight increase in CO2 production, which signifies a possible change in metabolic rate. Figures 4 and 7 show a relatively large change between the control and fox urine. The changes in slope between theses two are 0.0267 for Figure 4’s slopes and 0.0192 for Figure 7’s slopes.
reptilian lung The most distinctive features of birds is their lungs. Bird’s lungs are small and rigid, but are are highly efficient and meet the metabolic needs of flight. Respiration in birds is unique and involves a set of nine air sacs packed between muscles. The air sacs contain blood vessels and do not undertake oxygen exchange, but rather function like bellows to move air through the lungs. While fossils generally do not preserve soft tissue such as lungs, a very fine theropod dinosaur fossil has been found in which the outline of the visceral cavity has been well preserved.
Were dinosaurs warm blooded or cold blooded: Before beginning the argument we have to understand the term endothermy (homeotherms) and ectothermy (poikilotherms) : Endotherms: (endo, “inside”) , animals exhibit endothermy ,when they warm their tissues by the production of metabolic heat. Homeothermy : animals that thermoregulate by physiological means (rather than just by behaviour) Were dinosaurs warm or cold blooded ? Ectotherms : (ecto , “outside”) , animals exhibit ectothermy when thermal conditions outside the bodies of these animals determine their body temperature. Poikilothermy : body temperature of the animal is determined by equilibration with the thermal conditions of the environment and varies as environmental conditions vary.
The book Turtles all the way down is a book centers around a 16 year old girl names Aza Holmes and she deals with a lot of anxiety problems and the book walks through her struggle trying to find her friends lost dad who is opulent. While searching meticulously for Davis’s dad they run into an belligerent gard who questions them and takes them to Davis. When Aza askes Davis if he knows where his father is he replies ” My dad’s a huge shitbag. He skipped town before getting arrested because he’s a coward” (sam 34).
They are also covered in dense blubber. This blubber helps them stay warm in cold sea levels. There are two adaptations that these dolphins have made to help their need for energy. Dense
After that, you could then simulate a winter and see what the different species of frogs do to survive the cold. By just observing which species of frogs go where, it is possible to get an idea of how they hibernate in the wild during the winter. The second experiment would be a little tougher. It would involve actually going out in the winter and physically looking for frogs to see where they hibernate. With research already done, you could determine roughly where different species of frogs go in the winter.
Nonetheless, besides fish, many other kinds of poikilothermic animals, such as snakes and frogs, use lungs instead of gills to breathe, and further researches may be conducted to explore if caffeine has an effect on their metabolism. For example, forty northern leopard frogs with similar body size will be captured and divided into twenty trials, and each two frogs will be tested in the same control and experimental conditions as the goldfish metabolism experiment did. The collected slopes of oxygen concentration will then be converted into oxygen consumption rate and analyzed by the paired t-test. If the difference in the oxygen consumption rate between the control and experimental groups is statistically significant, this experiment will show that caffeine affects the metabolism of frogs, one kind of poikilotherms that use lungs to
Ray Bradbury used figurative language to describe the Tyrannosaurus Rex in “A Sound of Thunder. ’’ Ray Bradbury compared the legs to pistons, this means that the Tyrannosaurus Rex has strong legs. He compared it’s eyes to ostrich eggs, this means that the dinosaur has big eyes. He also compared muscles to thick ropes, this means that the dino has big thighs.
When a college student says that they are a kinesiology major the first thought that may come to mind when thinking of what that person wants to be is a coach or an athletic trainer. Moreover, there are several different careers whom might pursue from a kinesiology degree. Kinesiology is defined as the study of the mechanics of body movements, so the careers capable of being pursued range from coaches or athletic trainers to physical therapists. One discipline in kinesiology that be will be discussed is the job of a prosthetic practitioner. Which will be the purpose of this writing, to inform you about this kinesiology career and the concepts of it.
Sloths usually only go the forest floor to defecate, this makes them very vulnerable but when in the trees their color, slow movement and the algae on them acts as camouflages. A sloth’s fur is specialized to grow in the away from the sloth’ body to protect it from the weather when the the sloth is upside down and some of the sloth’s fur have tiny cracks that can collect water .Sloths are folivores, they mainly eat leaves and plant material , some two toed sloth sometimes will eat insects and other small animals. Since sloths mainly eat leaves, it does not give them enough nutrients they need so they have specialized chambered stomachs to slowly digest their food. Sloths also have very low metabolic rates and they have low body temperatures. Researchers have found out that sloths in the wild actually sleep about 10 hours a day and don’t sleep for fifteen or more hours like captive
This will enable the cheetah to take longer strides and have a longer contact length for a given speed, increasing their speed. The digital flexor muscles and the extensor digitorum communis were significantly heavy, which the dew claw is used during hunting prey. These muscles will also flex the digits, enabling the claws to be dug into the ground and aid traction during accelerations and maneuvers. The grooves on the cushions of their feet, as well as their claws (which are only semiretractable) give them better grip on the ground. It has a light skeleton for faster speed and its leg bones are longer in relation to the body size.
The Gastrocnemius Muscle of Rana pipiens is an Appropriate Model for Skeletal Muscle Contractile Kinetics When Compared to Peer-Reviewed Models Georgia Institute of Technology BMED 3110: Quantitative Engineering Physiology Laboratory I Section B: Team Baboons 16 November 2014 ABSTRACT The dynamics of skeletal muscle kinetics can be quantified using various experimental methods involving stimulated muscle contractions.
Mammals have fur or hair completely all over their bodies, and reptiles are covered in scales for protection. Mammals are the only animals that have fur and it grows from the outer layer of their skin. Mammals skin contain sweat glands, their skin releases oil, and it helps keep their fur waterproof. Their hair/fur offer protection against rain and cold. Reptiles skin does not contain sweat glands, which means their skin can easily dry out in an exposed environment.
Almost half of a human 's body weight is composed of muscle. There are three distinct types of muscle tissue: cardiac muscle, skeletal muscle, and smooth muscle. Each of the muscle tissues have different structures, properties, characteristics, and roles in our body. Properties of muscle tissues include excitability, contractility, extensibility, and elasticity. Contractility is the ability to shorten, which causes movement of the structures to which the muscles are attached.
Introduction I. Snakes are reptiles. They are cold-blooded animals with the amazing ability of raising and lowering their body temperatures to adapt to the environment. II. They are distinctively known for their long elongated body and scaly skin. III.