How are fishes characterized, Biology

Assignment Help:

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

Examples of representing beings: tuna, sardines, sharks, rays, salmons. Basic morphology: hydrodynamic body, fins cartilaginous skeleton in chondrichthyes, bony skeleton in osteichthyes. Skin: with scales in placoid and osteichthyes scales in chondrichthyes. Respiration: branchial, Circulation: incomplete, closed, heart with two chambers. Nitrogen waste: urea in chondrichthyes, ammonia in osteichthyes. Thermal control: heterothermic. Kind of reproduction: sexual, internal fecundation in chondrichthyes, external in osteichthyes.


Related Discussions:- How are fishes characterized

Pylum mollusca, Economic importance of phylum mollusca

Economic importance of phylum mollusca

Simple proteins, SIMPL E PROTEINS The proteins are made of amino acids...

SIMPL E PROTEINS The proteins are made of amino acids only. Additional chemicals are absent. These are of two types -    (i) Fibrous        (ii) Globular ( i )

Structure of the sperm, Structure of the Sperm The spermatozoa in dif...

Structure of the Sperm The spermatozoa in different animal groups display a wide variety of shapes and sizes but all share a. basic morphological plan. The sperm in most anim

Insulators - transgenic animals, Insulators Numerous experiments showed...

Insulators Numerous experiments showed that a transgene is generally poorly expressed when it contains a cDNA rather than the corresponding genomic DNA; when it is integrated a

What are the near point and the far point of the vision, Q. What are the ne...

Q. What are the near point and the far point of the vision? The near point is the closest distance between the eye and an object that makes possible the formed image to be focu

Protozoa, What is meant by encystment

What is meant by encystment

Diagnosis of galactosemia, Diagnosis of galactosemia is by measuring the ac...

Diagnosis of galactosemia is by measuring the activity of gal-l-P-transferuse in erythrocytes. Galactose should be restricted if the gal-1 -P-transferase is elevated above 2 mg/dl.

How to ensure food safety by haccp, Ensuring  Food  Safety It is now w...

Ensuring  Food  Safety It is now well-known that the end product inspection and  testing does not provide safety of food. It has inherent limitation of mapping the potential ha

Explain the ethological approach in taxonomy, Explain the Ethological Appro...

Explain the Ethological Approach in Taxonomy The use of behavioural or ethoIogica1 characteristics in animals is relatively new, though extremely useful, particularly in the id

Explain about the folate, Explain about the Folate? Folate is a generic...

Explain about the Folate? Folate is a generic term which includes naturally occurring food folate and folic acid in supplements and fortified foods. Pteroyl monoglutamic acid a

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