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

What are the materials required for radiographic, What are the Materials re...

What are the Materials required for Radiographic 1. Alginate impression material. 2. Silicone separating spray/ petroleum jelly 3. Autopolymerizing PMMA (Clear)

Determine the term - essential element, Determine the term - essential elem...

Determine the term - essential element It becomes difficult to meet all the conditions so as to establish essentiality. This is particularly so for the elements that are requir

Cytokinesis, Simultaneously with the formation of two daughter nuclei, a cl...

Simultaneously with the formation of two daughter nuclei, a cleavage furrow appears in the middle of the cell. The furrows gradually deepen and divide the cell into two daughter ce

Define the bioavailability of vitamin k, Define the Bioavailability of Vita...

Define the Bioavailability of Vitamin K? Very little is known about the bioavailability of the K vitamins from different foods.  It has been estimated that the efficiency of ab

Why is the cartilage more flexible than bone, why is the cartilage more fle...

why is the cartilage more flexible than bone? in general, why does cartilage take longer to repair than bone?

A balanced diet must contain enough energy, A balanced diet must have enoug...

A balanced diet must have enough energy to meet the body's needs. What else must it have?    In addition to sufficient energy, a balanced diet must have proteins, car

What is the thermopenetration concept, What is the thermopenetration concep...

What is the thermopenetration concept? The pasteurization of products packed in glass containers leads to a problem of a specific nature, which is referred to as 'thermopenetra

Effects of cardiogenic pulmonary edema, Effects of Cardiogenic Pulmonary Ed...

Effects of Cardiogenic Pulmonary Edema Interference with oxygen transfer in the lungs Depression arterial oxygen tension Sense of suffocation and oppression in the

What the ph of a solution of 1 m hcl, The pH of a solution of 1 M HCl is: ...

The pH of a solution of 1 M HCl is: Select one: a. 0 b. 0.1 c. 1 d. 10 e. negative 1

Procedures for diagnosis - nucleic acid hybridization, Nucleic acid hybridi...

Nucleic acid hybridization: This is a process by which a suitably labeled DNA or RNA from a known infectious agent is used to probe its complementary sequence unique to t

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