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

Unconventional oilseed cakes/meal, Unconventional oilseed cakes/meal ...

Unconventional oilseed cakes/meal Deoiled sal (Shorea robusta) seed meal: It is a byproduct obtained after the extraction of oil from sal seeds. It is found to be high in NF

Cell cycle, The cell cycle undergoes a sequence of changes which invol...

The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.

Formula concentration and supplementation - calorie density, Define Formula...

Define Formula Concentration and Supplementation - Calorie Density? Formula Concentration can be done by decreasing the amount or water added in the mixing of the formula. Sta

Carbohydrate metabolism, CARBOHYDRATE METABOLISM Carbohydrates  are  br...

CARBOHYDRATE METABOLISM Carbohydrates  are  broken down into  monosaccharides which are absorbed into  the  blood stream.  In  the  liver and muscles, most  of  the glucose  is

Explain the chemical properties of milk, Explain the chemical properties of...

Explain the chemical properties of milk Autoclaving milk, wherein temperature of around 121 o C is achieved, causes browning. The brown colour is due to the heat effecting an i

Determine the medical history - assessment, Determine the Medical History -...

Determine the Medical History - Assessment  A child's medical history often contains predictors of neuropsychological functioning. Perhaps the most obvious predictor is the pre

What are the main features of the meristematic cells, What are the main fea...

What are the main features of the meristematic cells? Why do these cells require to have a high mitotic rate? Meristematic cells have very thin cell walls, small vacuoles, a w

Define phase of the cell cycle, Q. Generally which phase of the cell cycle ...

Q. Generally which phase of the cell cycle has longer duration? The mitotic phase has quite a shorter length and the interphase comprises approximately 4/5 of the cell cycle.

Central and peripheral nervous system - geriatric nutrition, Explain Centra...

Explain Central and Peripheral Nervous System - Geriatric Nutrition? Age related changes occur in various senses related to the cranial nerves-vision, hearing, taste and smell

Primary consideration in risk management decisions, Protection of  human...

Protection of  human  health should  be  the primary consideration  in risk  management  decisions. Decisions on acceptable levels of risk should be determined primarily by hum

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