Aestivation

Numerous animal species live in environments characterized by a seasonal reduction in the availability of water, which often but not always occurs when temperatures are highest. For many such animals, survival during the toughest season requires spending long periods of time in a rather inactive state known as aestivation. But aestivation is much more than remaining inactive. Successful aestivation requires the selection of a proper microhabitat, variable degrees of metabolic arrest and responsiveness to external stimuli, the ability to sense the proper time of year for emergence, the preservation of inactive tissue, and much more. So, aestivation involves a complex collection of behaviors, ecological associations and physiological adjustments that vary across species in their type, magnitude and course. This book seeks to explore the phenomenon of aestivation from different perspectives and levels of organization, ranging from microhabitat selection to genetic control of physiological adjustments. It brings together authors from across the world working on different systematic groups, approaches, and questions, but who are all ultimately working to better understand the complex issue of aestivation.

Though physiological ecology has been a discipline since the 1950s, McNab redresses a perceived absence of a theoretical framework with a comparative, inductive approach to studying vertebrate evolution and ecology. He discusses the patterns and limits of adaptation to the environment, acclimation to temperature variation and material exchange with the environment, and the energetics of locomotion and growth. The final section treats the significance of energetics for population ecology and distribution. Includes a taxonomic as well as subject index. Suitable for advanced students and researchers in the biological and ecological sciences. The Gainesville, FL-based author is referred to by the foreword writer as a keen naturalist, but his credentials are not stated. Annotation copyrighted by Book News Inc., Portland, OR.

A unique account of the structure, biology and evolution of tropical flowering plants.

Proceedings of the CEC/IOBC Expert's Group Meeting, Pennes, France, November 1985. Forty contributions (authors are from 12 countries and two international organizations) deal with crops such as cabbages, carrots, tomatoes, potatoes, beans, and artichokes and with the particularly urgent task of red

The Big Book of Biology Volume 1- New Self Study Guide 2. The book is designed on Chapterwise Premises 3. Entire syllabus is divided into 22 Chapters 4. 7000 Topically divided objective questions along with detailed explanations 5. more than 13000 MCQs given from all possible typologies There was never a better time to emphasize the Fact that How important doctors are. Its probably the most fulfilling and dream career opportunity for any aspirants. NEETis the gateway to millions of dreamers to open the door for admission in top MBBS Colleges in India and Biology plays half the role. Looking at the need of the hour and based on Changing and Latest Pattern of examination Arihant brings you the “The Big Book of Biology”. The New Self Study Guide has been designed on Chapterwise Premises. The all-new series of “Big Book of Biology for NEET – Volume 1” has been designed to fulfil the important needs of all NEET aspirants. The syllabus in this volume has been divided into 22 chapters as per latest pattern, serving as an in-depth question bank of Biology subject. This book has; 7000 Topically divided objective questions are given for along with the Detailed explanations, collection of more than 13000 MCQs given from all possible typologies arranged in Chapterwise and Topicwise as per NEET 2020 Syllabus for practice, to the point amicable explanations in each chapter, vast coverage given to objection questions asked in various Medical Entrances from 2000 till date. 2. The book is designed on Chapterwise Premises 3. Entire syllabus is divided into 22 Chapters 4. 7000 Topically divided objective questions along with detailed explanations 5. more than 13000 MCQs given from all possible typologies There was never a better time to emphasize the Fact that How important doctors are. Its probably the most fulfilling and dream career opportunity for any aspirants. NEETis the gateway to millions of dreamers to open the door for admission in top MBBS Colleges in India and Biology plays half the role. Looking at the need of the hour and based on Changing and Latest Pattern of examination Arihant brings you the “The Big Book of Biology”. The New Self Study Guide has been designed on Chapterwise Premises. The all-new series of “Big Book of Biology for NEET – Volume 1” has been designed to fulfil the important needs of all NEET aspirants. The syllabus in this volume has been divided into 22 chapters as per latest pattern, serving as an in-depth question bank of Biology subject. This book has; 7000 Topically divided objective questions are given for along with the Detailed explanations, collection of more than 13000 MCQs given from all possible typologies arranged in Chapterwise and Topicwise as per NEET 2020 Syllabus for practice, to the point amicable explanations in each chapter, vast coverage given to objection questions asked in various Medical Entrances from 2000 till date. TOC The Living world, Biological Classification, Plant Kingdom, Animal Kingdom, Morphology of Flowering Plants, Anatomy of Flowering Plants, Structural Organisation in Animals, Cell: The Unit of Life, Biomolecules, Cell Cycle and Cell Division, Transports in Plants, Mineral Nutrition, Photosynthesis in Higher Plants, Respiration in Plants, Plant Growth and Development, Digestion and Absorption, Breathing and Exchanging of Gases, Body Fluids and Circulation, Excretory Products and Their Elimination, Locomotion and Movement, Neural Control and Coordination, Chemical Coordination and Integration.

This book is perhaps the first attempt to comprehensively project the uniqueness of molluscs, covering almost all aspects of reproduction and development from aplacophorans to vampyromorphic cephalopods. Molluscs are unique for the presence of protective external shell, defensive inking, geographic distribution from the depth of 9,050 m to an altitude of 4,300 m, gamete diversity, the use of nurse eggs and embryos to accelerate the first few mitotic divisions in embryos, the natural occurrence of androgenics in a couple of bivalves, viable induced tetraploids, gigantism induced by elevated ploidy, the complementary role played by mitochondrial genome in sex determination by nuclear genes and the uptake and accumulation of steroid hormone from surrounding waters. In molluscs, sexuality comprises of gonochorism ( 24%), protandry (

Floral diagrams are detailed two-dimensional drawings of floral structures and a tool to explain floral diversity and angiosperm evolution.