Insulation by fur and feathers, Biology

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.

Posted Date: 1/16/2013 5:57:15 AM | Location : United States







Related Discussions:- Insulation by fur and feathers, Assignment Help, Ask Question on Insulation by fur and feathers, Get Answer, Expert's Help, Insulation by fur and feathers Discussions

Write discussion on Insulation by fur and feathers
Your posts are moderated
Related Questions
Define about the Photometry - colorimetry? Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source

The northern most biome on our planet is the arctic tundra. It is a treeless wet circumpolar band between the polar ice caps and the forests to the south. The predominant plants

Find the equilibrium molality of solute species? Consider a hypothetical system in which two aqueous solutions are separated by a semipermeable membrane. Solution α is prepared

Which are the germ layers present in cnidarians? Which tissues of the animal do they originate? These beings there ectoderm and endoderm, two germ layers. Animals with only two

In which meiotic division does the separation of identical chromatids occur? After the end of this process what are the ploidies of the new cells? The separation of identical c

Seed Dormancy - Plant Growth Substances Seed dormancy is critically important for the survival of plants. Factors involved in seed dormancy are: A. Environmental Factors

Companion cells  are the specialized cells in the phloem which load sugars into the sieve elements and help to maintain a functional plasma membrane in the sieve elements.

You are studying how proteins are targeted to the mitochondria. MIP1 is in the mitochondrial inner membrane, whereas MIP2 is targeted to the matrix. You are most interested in how

What is Microbodies ? Microbodies : Microbodies are formed by pinching off of vesicles from rough endoplasmic reticulum. They are not found in every cell, but are present a

A laboratory mouse homozygous for an RFLP marker is mated to a wild mouse that is heterozygous for that marker. One of the heterozygous individuals resulting from this cross is mat