How are amphibians characterized, Biology

Assignment Help:

Q. Amphibian identity card. How are amphibians characterized according to examples of representing beings, basic morphology, circulation, skin, nitrogen waste, respiration, thermal control and types of reproduction?

Instances of representing beings: toads, frogs, salamanders. Basic morphology: two pairs of eyelids, limbs, hydrodynamic larvae. Skin: permeable and moist, mucous glands. Respiration: pulmonary and cutaneous, branchial in larval stage. Circulation: incomplete, closed, heart with three chambers without interventricular septum. Nitrogen waste: urea, Thermal control: heterothermic. Kind of reproduction: water dependant, sexual, aquatic larval stage and external fecundation.


Related Discussions:- How are amphibians characterized

State the term - neuropsychologists, State the term - neuropsychologists ...

State the term - neuropsychologists Disorders of speech, language, reading, writing, and mathematical abilities are understood in terms of linguistics and the psychology of lan

What are the possible phenotypes of the progeny, A (w+/ w+) red-eyed Drosop...

A (w+/ w+) red-eyed Drosophila female is crossed with a white-eyed male. Assuming the trait for eye colour is sex-linked, what are the possible phenotypes of the progeny?

Describe five different types of gateway vectors, Describe five different t...

Describe five different types of gateway vectors that are available, what different functions they can perform, and for what purpose. e.g.  (1) Vector pXXX, (2) function - expre

Controlling of gaseous pollutants, The gaseous pollutants can be controlled...

The gaseous pollutants can be controlled through the techniques of combustion, absorption adsorption and cold trapping. (a)   Combustion: Though combustion is a major cause of i

Explain the air samplers - air sampling, Explain the Air Samplers - Air Sam...

Explain the Air Samplers - Air Sampling? Air Samplers, e.g., all glass impinger and the Andersen sieve samplers may be used. Volume of the air sampled is known. In all glass im

Structure of the vascular system, Structure of the Vascular System Th...

Structure of the Vascular System The layers of the vascular system are all similar in veins and ateries. The difference of thickness of various layers constitute the functio

Exceptions to the cell theory, Exceptions to the Cell Theory Viruses, ...

Exceptions to the Cell Theory Viruses, however, are not the only exception to the Cell Theory as formulated earlier. This has led scientists to take a much broader view of the

What is the diameter of this nucleus, By bombarding atoms in a thin metal s...

By bombarding atoms in a thin metal sheet with energetic particles, Rutherford found that most of the mass of an atom is concentrated inside a very small volume. What is the diamet

What is the production of rna called, What is the production of RNA called ...

What is the production of RNA called and what is the enzyme that catalyzes the process? The making of RNA from information included in DNA is called transcription. The enzyme t

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