Hibernation and aestivation, Biology

Assignment Help:

Hibernation and Aestivation

Poikilotherms pass the winter in a resting state, known as hibernation. When they enter a resting state in response to heat or drought, the condition is called aestivation. In general Poikilotherms derive two types of benefit from the resting states that may enter during times of environmental stress.

First, by virtue of their special physiological state, the animals may enjoy an enhanced physiological ability to cope with the extreme conditions. (Example increased freezing resistance etc.) Second, they are often permitted to remain continuously in favourable microhabitats. Their metabolism is depressed to such an extent that the store of nutrients (example, body fat) can augment. The variety of mechanisms exploited by Poikilotherms in escaping some of the rigors of extreme temperatures may be divided into behavioural and physiological adaptations.

 


Related Discussions:- Hibernation and aestivation

What are sori, What are sori? The word "sori" is the plural form of "so...

What are sori? The word "sori" is the plural form of "sorus". In ferns, a sorus (pl. sori) is a cluster of sporangia on the edge or underside of a fertile frond. In lots of spe

Microbiology.., describe the function of a bacterial flagellum

describe the function of a bacterial flagellum

What is slime molds in diversity of life, What is Slime Molds in diversity ...

What is Slime Molds in diversity of life? Acrasiomycota and Myxomycota are appropriately named slime molds. They are slimy! The other part of their name comes from the time whe

Indications for emergency surgery in ar, Indications for Emergency Surgery ...

Indications for Emergency Surgery in AR 1) Post balloon valvotomy AR with haemodynamic compromise 2) Acute thrombosis of prosthetic valve, not responding to thrombolysis

Transcription of protein-coding genes in eukaryotes, The Protein synthesis ...

The Protein synthesis is very significant because it is by the use of genetic information to synthesize proteins in which the genes in the DNA are expressed in the phenotype. Make

The statement is true or false, Anton van Leeuwenhoek was the first to prop...

Anton van Leeuwenhoek was the first to propose placing microorganisms into the Kingdom Monera. True or False

Radiant warmer, Radiant Warmer A radiant warmer is a device used to m...

Radiant Warmer A radiant warmer is a device used to maintain the body temperature of the newborn and thus play an essential role in influencing oxygen consumption, apnea and

What is r - wave amplitude, Q. What is R - Wave Amplitude? The R-wave a...

Q. What is R - Wave Amplitude? The R-wave amplitude in the lateral precordial leads usually decreases more in normal than in abnormal subjects and correlates with left ventr

Explain fundamental of the photosynthesis process, Q. Is it correct to cons...

Q. Is it correct to consider water decomposition by the action of light the fundamental of the photosynthesis process? In addition ADP photophosphorylation, photic energy is al

Assessment and nursing care plans, Assessment and Nursing Care Plans C...

Assessment and Nursing Care Plans Clustered Case Study Mr. Smith is an 83 year old gentleman (DOB 1.2.1928), who lives alone in his home on a cattle farm west of Ravenshoe.

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