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

Explain the disadvantage of contact plate method, Explain the Disadvantage ...

Explain the Disadvantage of Contact Plate Method? These plates are suitable for sampling the surfaces having low contamination, like pre-cleaned and sanitized surfaces. This is

Mode of hormone action through intracellular receptors, MOD E OF HORMONE A...

MOD E OF HORMONE ACTION THROUGH INTRACELLULAR RECEPTORS - Steroid hormones are lipid-soluble and easily pass through the cell membrane of a target cell into the cytoplasm.

Cell theory, Normal 0 false false false EN-IN X-NONE ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Treatment of sewage, The sewage treatment methods can be classified into th...

The sewage treatment methods can be classified into the following heads: Primary treatment Secondary treatment Tertiary treatment 1. Primary Treatment: The primary

Explain about s-shaped incision for a mini pedicle flap, Q. Explain about S...

Q. Explain about S-Shaped incision for a mini pedicle flap? The S - shaped incision is indicated where a papilla needs to be developed and was first described by Palacci. This

List the four phases of meiosis i, List the four phases of meiosis I, and b...

List the four phases of meiosis I, and briefly explain what occurs during each phase Prophase I: DNA coils into chromosomes, the nucleolus and nuclear envelope disappear, the m

Excretory organs, The excretory organs and excretory materials of plants an...

The excretory organs and excretory materials of plants and animals

Draw the relationship between jp and v, Given the cell described in Figure ...

Given the cell described in Figure 7.7 with a=100mM, Pk=1.0, and PNa=0.04, at steady state, plot the relationship between Jp and V.

Explain what is correction of hypovolemia, Explain what is Correction of Hy...

Explain what is Correction of Hypovolemia ? Intravenous fluids should be given to correct hypovolemia and optimize preload to the heart. This is particularly important in sept

Define vapor-pressure lowering and osmotic pressure, Define Vapor-pressure ...

Define Vapor-pressure lowering and Osmotic pressure? 1. Vapor-pressure lowering: the decrease in the vapor pressure of a solution containing nonvolatile solutes, compared to th

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