Flightless birds, Biology

Assignment Help:
#Most of the world''s flightless birds are either nocturnal and secretive (e.g. the kagu) or large, swift and well-armed (the ostrich). The exceptions are found primarily on islands, and many of these island species have become extinct with the arrival of humans and their domestic animals.

What special biogeographical conditions on islands might permit the survival of flightless birds? Why has the colonization so often resulted in the extinction of such birds? The power of flight has been lost secondarily in representatives of many groups of birds; what are some possible evolutionary advantages of flightlessness that might offset its obvious disadvantages?

Related Discussions:- Flightless birds

Define tests to measure muscular strength and endurance, Define Tests to Me...

Define Tests to Measure Muscular Strength and Endurance? It is important to first understand the difference between muscular strength and endurance. To know the muscular streng

Proteins, what is he importance of proteins for living beings

what is he importance of proteins for living beings

What are hydrophobic molecules, What are hydrophobic molecules (or hydropho...

What are hydrophobic molecules (or hydrophobic molecular regions)? What are hydrophilic molecules? How can they be characterized in relation to their polarity? Hydrophobic mol

What are uses of hydrocolloids for health, Uses of Hydrocolloidsfor health ...

Uses of Hydrocolloidsfor health Hydrocolloids, together with other dietary fibres are increasingly being seen as contributing to a number of health effects. Some of the hydroco

What is the mechanism of elisa, ELIZA stands for enzyme linked immune diffu...

ELIZA stands for enzyme linked immune diffusion assays. It works on standard of antigen antibody reaction.

Illustrate the interphase, Q. Is the cell division happening during the ent...

Q. Is the cell division happening during the entire cell cycle? What is the interphase? Cell division properly occurs throughout the mitotic phase of the cell cycle. During int

Deficiency diseases-predisposing factors, Predisposing factors The inc...

Predisposing factors The incidence of metabolic diseases in cows and buffaloes increases as the milk production increases and the herd size becomes larger. The highest inciden

What is the minimal space between implants and implant, Minimal space betwe...

Minimal space between implants and implant and adjacent tooth It is important to maintain a distance of at least 1.5 to 2 mm between an implant and adjacent tooth and a distanc

The basics of dna cloning, There  are a broad  range  of various  process  ...

There  are a broad  range  of various  process  for cloning  DNA  into  either viral  or plasmid vectors  but the basic  scheme  of events  is frequently  same.  To clone into a pl

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