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

The codon gca specifies which amino acid, Use the genetic code table Assign...

Use the genetic code table Assignment34 The codon GCA specifies which amino acid?

Explain the term- loss-of-function mutation, Where would a predicted silent...

Where would a predicted silent mutation have to be situated to actually result in a loss-of-function mutation (and potentially lead to the onset of disease)? A. Intron-exon jun

Explain soybean protein, Explain soybean protein The need for the devel...

Explain soybean protein The need for the development of soybean protein concentrates stemmed primarily from two considerations: to enhance protein concentration and to improve

Explain water universal solvent, Explain water Universal Solvent ? Wa...

Explain water Universal Solvent ? Water - Universal Solvent :  Water is usually referred to as the "universal solvent." because it is able to dissolve many different substan

Provide the definition of health care, Provide the Definition of Health Car...

Provide the Definition of Health Care? Health care involves much more than just medical care and can be defined as "multitude of services provided to individuals or communities

Taxonomy, Agroup of realated genera are classified as-?

Agroup of realated genera are classified as-?

Define dark field microscope, Define Dark Field Microscope In this micr...

Define Dark Field Microscope In this microscope, condenser system is modified, so that only reflected and refracted light by specimen forms an image. Here, the object is bright

When fecundation to be effective, Q. How long after ovulation must fecundat...

Q. How long after ovulation must fecundation occur to be effective? If fecundation doesn't occur around 24 hours after ovulation the released ovum often dies.

What is the goal of biological classification, The goals of biological clas...

The goals of biological classification The world of animal diversity is quite complex and it requires an ability to recognise similarities and differences among organisms. Class

Biogeochemical cycle, The cyclic exchange of nutrient material between orga...

The cyclic exchange of nutrient material between organisms and non-living  environment is called biogeochemical  cycle ,'geo means earth: ''chemical' means chemical elements, thus

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