Criteria to complete evolutionary branch of vertebrates, Biology

Assignment Help:

What are the six criteria used to build a complete evolutionary branch of vertebrates?

Dichotomy in each of the six following criteria builds the vertebrate evolutionary branch: absence of mandibles divides cyclostomes from others; absence of limbs divides fishes from the remaining; absence of osseous skeleton divides chondrichthian (cartilaginous) fishes from osteichthyes; absence of impermeable skin divides amphibians from the terrestrial vertebrates; absence of warm blood (homeothermic body) divides reptiles from birds and mammals; absence of mammary glands and hair divides birds from mammals.

 


Related Discussions:- Criteria to complete evolutionary branch of vertebrates

Role of private sector in health care - competition, Role of Private Sector...

Role of Private Sector in Health Care - Competition When the private sector is driven by competition it tends to be more efficient. With competition, benefits like cost reduct

Explain implant mobility and discomfort - implant interface, Implant Mobili...

Implant Mobility and Discomfort Implant mobility is an indication of the lack of osseointegration. Even if periimplant disease has progressed relatively far, implants may still

Whta are radial loops , When the chromosomes  are depleted  of histo...

When the chromosomes  are depleted  of histones  they  are seem  to have  a central fibrous 'protein  scaffold'  or nuclear  matrix  to which the DNA is attached  in loops. Therefo

What are the constituent elements of the blood, What are the constituent el...

What are the constituent elements of the blood? The blood is made of a liquid and a cellular part. The fluid part is known as plasma and in it there are several substances, suc

Formation of gametes, In his experiments, Mendel noted that when two traits...

In his experiments, Mendel noted that when two traits are involved in a genetic cross, they are inherited independently of each other. The reason for this is that A. genes on the s

How to indicate an av block, During the course of a physiology laboratory, ...

During the course of a physiology laboratory, a student finds that her PR interval is 0.24 second. Concerned, she takes her own ECG again an hour later and sees an area of the ECG

Define proteins required for underweight - nutritional care, Define Protein...

Define Proteins required for underweight - Nutritional Care? Proteins are required for tissue building, as well as, to take care of the daily wear and tear. Under weight indivi

Determine the principles of Behavioural neuropsychology , Determine the pri...

Determine the principles of Behavioural neuropsychology Behavioural neuropsychology approaches are based on the principles of learning theory and behavioural modification. Beh

Explain mid-diastolic and lafe diastolic pre systolic sound, Explain Mid-di...

Explain Mid-diastolic and Lafe Diastolic (Pre Systolic) Sounds ? Mid-diastolic sounds are S3 sounds and late diastolic (pre systolic) sounds are S3 sounds. Pre systolic Pacema

Mutual supplementation of protein with legume and milk, Define Mutual suppl...

Define Mutual supplementation of Protein with legume and milk? Improvement of cereal diets with legume and milk proteins: The proteins of poor diets based on different cereals

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