Insulation by fur and feathers, Biology

Assignment Help:

Insulation by Fur and Feathers

There is a strong correlation between the extent of integumentary insulation and the rigors of natural environment. In general, Arctic or Antarctic species are better insulated than tropical species, with well marked seasonal variations in the thickness of fur (example, Polar bear) or feathers (example, penguins).

Likewise, the aquatic mammals living in these areas such as seals and whales have thick layers of subcutaneous blubber (fatty layer) as a means of major insulation. However, it should be noted that the extent of fat deposition (blubber) is not the same in all parts of the body.


Related Discussions:- Insulation by fur and feathers

Why is the use of condoms, Why is the use of condoms not just a contracepti...

Why is the use of condoms not just a contraceptive method but also a health protection behavior? The use of condoms besides being an efficient contraceptive method also helps

Factor influencing lipid oxidation - temperature, Factors affecting lipid o...

Factors affecting lipid oxidation Temperature In general, the rate of oxidation increases as the temperature is increased. Temperature also influences the relation betw

Syngamy - patterns of sexual reproduction, Syngamy - Patterns of Sexual Rep...

Syngamy - Patterns of Sexual Reproduction Sperm fuses with the egg. This results in both the union of the paternal nucleus with the maternal one (karyogamy), as well as the fu

What are some examples of interspecific competition, What are some examples...

What are some examples of interspecific competition? Examples of interspecific competition are: the dispute between vultures, worms, flies and microorganisms for carrion and th

Defines the tenants of pangenesis theory, Defines the tenants of Pangenesis...

Defines the tenants of Pangenesis Theory Which of the following best defines the tenants of Pangenesis Theory? A. The hereditary material is composed in every organ/tissue a

Explain the cardiac cycle of human body, Explain the Cardiac Cycle of human...

Explain the Cardiac Cycle of human body? The different stages of a heart pumping cycle are referred to as follows: contraction of the ventricles is called systole, and relaxati

Illustrate about nervous system, Illustrate about Nervous System Functi...

Illustrate about Nervous System Functional unit of nervous system is neuron. Neuron is nerve cell. Information passes through neurons by nerve impulses. Nervous system corre

What is the type of reproduction that occurs in roundworms, What is the typ...

What is the type of reproduction that occurs in roundworms? What typical element do nematode sperm cells have? Nematodes reproduce sexually. The nematode sperm cell does not h

Define natural adulteration - types of adulteration, Define Natural Adulter...

Define Natural Adulteration - Types of Adulteration? These are the chemicals, organic compounds or radicals which are naturally present in the food and are harmful to the healt

Chronic mitral regurgitation-indications for surgery, Chronic Mitral Regurg...

Chronic Mitral Regurgitation :  In chronic mitral regurgitation, the asymptomatic phase is much longer than in mitral stenosis. Onset of symptoms may also mean the onset of l

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd