Thermoregulation-Helps maintain a constant body temperature) this is done by sweating and adjusting the diameter of blood vessels and flow of blood.…
-birds lose excess body heat by evaporation of water from the respiratory tract and skin…
Our body also responds to temperature change (heat loss/gain). This is shown when we are cooling down as the metabolism speeds up, we shiver to produce heat and we experience vasoconstrictions which is the blood diverting through the lower skin levels to lessen the heat lost. It is also shown when we are warming up as the metabolism slows down, we sweat, we lose insulation by the relaxation of the hair erector lowering the hair meaning there is less of an insulating layer of warm air next to the skin and we experience vasodilatation which is when the blood comes to the surface and heat can be radiated…
n. Endotherm- an animal whose internal body temperature is a result of internal sources of heat…
This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process called respiration or breathing. Aerobic respiration, also known as aerobic metabolism, occurs when oxygen is taken into the body and sent to all its cells; the oxygen is then used to break down food for energy (White and Campo 2008). Respiration can be experienced through several structures such as the lungs, tracheae, gills, and integument in order to obtain oxygen. All organisms that experience respiration are either endotherms or ectotherms. Ectotherms are animals that depend on their environment for body temperature. These animals respond to changes in their environment in order to maintain homeostasis, the stable, internal conditions of the organism. Animals that are warm-blooded and can regulate their body temperatures internally regardless of their environment are endotherms. For ectotherms, regulating body temperatures can require more work. Those aquatic animals have adapted several techniques to stay alive. Larry Crawshaw explains that animals, both aquatic and terrestrial, seek to avoid stressful thermal environments or to compensate for the temperature change by mostly lowering the metabolic rate (1979). Lowering the metabolic rate allows certain enzymes to be produced and chemical reactions to happen within the fish that actually warms it up. While lowering metabolic rates are important, respiration regulation is also important. Stephen C. Wood also believes that ectotherms need behavioral mechanisms for temperature control. These mechanisms could include slowing breathing rates to conserve energy and releasing certain chemicals into the body (1991). This…
In warm-blooded animals such as humans, body temperature must be maintained by various negative feedback reflex responses within the body.…
In mammals a constant body temperature is maintained using the part of the brain called the hypothalamus, this detects information from thermoreceptors about the internal and external temperatures. The changes in the internal temperature is detected by thermoreceptors which are located in the hypothalamus and detect the temperature of the blood, while there are thermoreceptors which are located in the skin which detect any changes in the external temperature. The changes which are detected by the thermoreceptors are sent as impulses along sensory neurones to the hypothalamus where corrective measures can then be put in place by sending signals to effectors. Depending on whether temperature needs to be increased or decreased to return to normal levels depends on the mechanisms which are used to do this. For example to increase the body temperature vasoconstriction is one technique which the body uses, this involves the narrowing of blood vessels retaining the body temperature. Less sweating, hairs standing up right and shivering are also used to help increase the body temperature. To decrease the body temperature vasodilatation is used, it widens the blood vessels increasing the blood flow to the surface of the skin and therefore helping to reduce body temperature. Other methods which help to decrease body temperature are swearing and hairs lying flat. All of these methods either help to increase or decrease body temperature returning to…
1. What is light intensity? What is hue? What is chroma? Use the male cardinal as an example for each concept. Why is chroma especially important to the male cardinal?…
Cold and warm blooded terms are terms used throughout science to explain the way an animal regulate their body temperature. Terms used to explain warm and cold blood animals are: endothermic, ectothermic, homoeothermic, and poikilothermic. These four terms help to describe what warm and cold blooded mean. Endothermic animals regular their body temperature from the inside their…
Cold resistant organisms evolved in various ways to cope with very low temperatures. Some animals hibernate, take shelter or migrate to warmer countries. Others, such as Antarctic seals have warm fur and a thick layer of fat for insulation.…
Thermoregulation is the ability to balance heat production and heat loss in order to maintain body temperature within a certain ‘‘normal’’ range.…
The hummingbird moth is a beautiful Moth that carries the same characteristics as a Hummingbird. They look very similar and also eat the same but live in their very own different ways. It is common to mistake this insect as a bird instead of its pure life form that it is. Even though they can be deceiving in the looks and the way they live, how the sphinx adapts in their living environment because adult Sphinx feed on nectar from many different flowers. Looking at these beautiful creatures you will learn their life cycle, habitat, matting cycle and more.…
The debate of whether dinosaurs were cold blooded or warm blooded has been ongoing since the beginning of the century. At the turn of the century scientists believed that dinosaurs had long limbs and were fairly slim, supporting the idea of a cold blooded reptile. Recently, however, the bone structure, number or predators to prey, and limb position have suggested a warm blooded species. In addition, the recent discovery of a fossilized dinosaur heart has supported the idea that dinosaurs were a warm blooded species. In this essay, I am going to give supporting evidence of dinosaurs being both warm and cold blooded. I will provide background information on the dinosaur that was discovered and what information it provides scientists.…
1. Gather around the edge of the table cloth, mixing the three groups fairly evenly.…
running is efficient only if an animal's legs are positioned underneath its body, not at…