Blue Tongue Lizard Temperature Adaptations free essay sample

Ectotherms are â€Å"cold-blooded† animals such as reptiles, amphibians, insects, fish and worm. These animals rely on the outside environment for their body heat as they do not generate heat internally like a mammal or bird. Ectotherms have a variety of adaptations, many of them behavioural, to regulate their body temperature and keep it within the range in which they can be active; 10-30oC The Tiliqua or more commonly known as the blue-tongue lizard or just Blue tongue is the largest member of the skink family in Australia. There are six species of blue-tongued lizards or skinks in Australia. -Common or Eastern Blue-tongue Lizard (Tiliqua scincoides scincoides) -Northern Blue-tongued Skink (Tiliqua scincoides intermedia) -Western blue-tongued skink (Tiliqua occipitalis) -Central blue-tongued skink (Tiliqua multifasciata) -Blotched Blue-tongue (Tiliqua nigrolutea) -Shingleback (Tiliqua rugosa) -Pygmy Blue-tongue Skink (Tiliqua adelaidensis) Blue-tongue Lizards are found throughout most of Australia. Blue-tongues usually live in open country with lots of cover such as tall grasses, litter and low shrubs. We will write a custom essay sample on Blue Tongue Lizard Temperature Adaptations or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page They shelter at night among these covers, in burrows and under large objects on the ground such as rocks and logs. There are three main temperature adaptations that a blue tongue lizard has to maintain its temperature. Blue tongues lie in a sunny spot with their body flattened and turned side-on to the side on a cool morning. This way it absorbs heat more quickly to get its body temperature high enough to become active and is only active when their body temperature is above 30oC and below 35oC. Secondly, as the day becomes hotter, the lizard will turn facing the sun to absorb less heat, and seek shade to avoid the potential of over-heating And lastly, during cold weather they mostly remain inactive, buried deep in their shelter sites. To avoid over heating they move into shades or burrows to cool down from the rising temperature. The temperature in their shelters is fairly constant, which enables the lizard to cool down.

Free Essays on Managing People With Aids

Managing People with AIDS Today, AIDS is the second leading cause of death among adults between the ages of 25 and 44. With more than half of the nation’s 126 million workers in this age group, managers cannot afford to ignore this deadly disease. As more effective drug therapies, such as protease inhibitors, are extending the lives of HIV positive people, an increased number are able to return to the workforce and stay productive. One in six large companies has had an employee with HIV/AIDS and one in 15 companies with 15 to 49 employees has had at least one worker with HIV/AIDS (according to the CDC in Atlanta). The World Health Organization estimates that by the year 2000, there will be 15 million new adult HIV infections, with six million people exhibiting symptoms of the disease. Since 25 % of new cases are in between the ages of 13 to 20 years old, this means that the teenagers of today who are HIV positive are the workers who will develop AIDS in 10 years. In order to be successful into the futu re, companies need to address HIV-infected workers and workers with AIDS. However, HIV and AIDS pose special challenges to employers. HOW AIDS IS TRANSMITTED HIV (Human Immunodeficiency Virus) is the retrovirus that causes AIDS, or Acquired Immune Deficiency Syndrome. While AIDS itself does not kill a person, the disease weakens the person’s immune system, allowing other diseases like Kaposi’s sarcoma invade the body. These opportunistic diseases eventually overwhelm the person’s body. The virus is found in blood and other body products like saliva, sweat, and tears, and can only be transmitted by the exchange of blood, body products, or by sexual contact. Once the HIV virus is exposed to air, it dies instantaneously. This means that someone cannot spread the virus through breathing the same air, or by casual contact such as shaking hands. A person can be infected if he/she has an open wound that comes into contact wit... Free Essays on Managing People With Aids Free Essays on Managing People With Aids Managing People with AIDS Today, AIDS is the second leading cause of death among adults between the ages of 25 and 44. With more than half of the nation’s 126 million workers in this age group, managers cannot afford to ignore this deadly disease. As more effective drug therapies, such as protease inhibitors, are extending the lives of HIV positive people, an increased number are able to return to the workforce and stay productive. One in six large companies has had an employee with HIV/AIDS and one in 15 companies with 15 to 49 employees has had at least one worker with HIV/AIDS (according to the CDC in Atlanta). The World Health Organization estimates that by the year 2000, there will be 15 million new adult HIV infections, with six million people exhibiting symptoms of the disease. Since 25 % of new cases are in between the ages of 13 to 20 years old, this means that the teenagers of today who are HIV positive are the workers who will develop AIDS in 10 years. In order to be successful into the futu re, companies need to address HIV-infected workers and workers with AIDS. However, HIV and AIDS pose special challenges to employers. HOW AIDS IS TRANSMITTED HIV (Human Immunodeficiency Virus) is the retrovirus that causes AIDS, or Acquired Immune Deficiency Syndrome. While AIDS itself does not kill a person, the disease weakens the person’s immune system, allowing other diseases like Kaposi’s sarcoma invade the body. These opportunistic diseases eventually overwhelm the person’s body. The virus is found in blood and other body products like saliva, sweat, and tears, and can only be transmitted by the exchange of blood, body products, or by sexual contact. Once the HIV virus is exposed to air, it dies instantaneously. This means that someone cannot spread the virus through breathing the same air, or by casual contact such as shaking hands. A person can be infected if he/she has an open wound that comes into contact wit... Free Essays on Managing People With Aids Managing People with AIDS Today, AIDS is the second leading cause of death among adults between the ages of 25 and 44. With more than half of the nation’s 126 million workers in this age group, managers cannot afford to ignore this deadly disease. As more effective drug therapies, such as protease inhibitors, are extending the lives of HIV positive people, an increased number are able to return to the workforce and stay productive. One in six large companies has had an employee with HIV/AIDS and one in 15 companies with 15 to 49 employees has had at least one worker with HIV/AIDS (according to the CDC in Atlanta). The World Health Organization estimates that by the year 2000, there will be 15 million new adult HIV infections, with six million people exhibiting symptoms of the disease. Since 25 % of new cases are in between the ages of 13 to 20 years old, this means that the teenagers of today who are HIV positive are the workers who will develop AIDS in 10 years. In order to be successful into the futu re, companies need to address HIV-infected workers and workers with AIDS. However, HIV and AIDS pose special challenges to employers. HOW AIDS IS TRANSMITTED HIV (Human Immunodeficiency Virus) is the retrovirus that causes AIDS, or Acquired Immune Deficiency Syndrome. While AIDS itself does not kill a person, the disease weakens the person’s immune system, allowing other diseases like Kaposi’s sarcoma invade the body. These opportunistic diseases eventually overwhelm the person’s body. The virus is found in blood and other body products like saliva, sweat, and tears, and can only be transmitted by the exchange of blood, body products, or by sexual contact. Once the HIV virus is exposed to air, it dies instantaneously. This means that someone cannot spread the virus through breathing the same air, or by casual contact such as shaking hands. A person can be infected if he/she has an open wound that comes into contact wit...