Transport system in higher animals, Biology

Assignment Help:

Transport system in higher animals

  1. The circulatory system in higher animals has undergone several changes during evolution.
  2. The heart has become totally muscular.
  3. It pumps the blood into well-defined blood vessels
  4. The two chambered heart in fishes evolved into a three chambered heart in amphibians and finally into a four chambered heart in birds and mammals.
  5. Deoxygenated blood is collected from the body parts and sent to the respiratory system for oxygenation.
  6. In animals, like fish the blood is directly sent from the gills to all the body parts.
  7. In higher animals oxygenated blood is sent back to the heart and then from there to body parts.
  8. Single circuit circulation occurs in fish. In amphibians, reptiles, birds and mammals double circuit circulation takes place.

 

825_transport system in higher animals.png


Related Discussions:- Transport system in higher animals

Procedures for diagnosis - monoclonal antibodies, M o n o c ...

M o n o c l o n a l antibodies: Hybridoma technology for production of monoclonal antibodies is one of the most important advancements in the f

List the steps of mitosis, Q. List the steps of mitosis and briefly describ...

Q. List the steps of mitosis and briefly describe what happens in each.

History of the cell, HISTORY OF THE CELL Term "Cytology" was given b...

HISTORY OF THE CELL Term "Cytology" was given by Hertwig , he also wrote a book on " Cell and Tissue ". Father of cytology = Robert Hooke. Father of Modern cytology

Adrenocortical steroids - vertebrates, Normal 0 false false ...

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

Determine the members of kingdom plantae, Normal 0 false fals...

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

What is the nucleolus, The nucleolus is a small and optically dense region ...

The nucleolus is a small and optically dense region in the interior of the cell nucleus. It is made of ribosomic RNA (rRNA) and proteins. Single nucleus can have one or more nucleo

Littoral zone, Littoral Zone Plants of the littoral zone Two types ...

Littoral Zone Plants of the littoral zone Two types of plants occur here: Non-rooted phytoplanktons which include all kinds of algae occurring in the limnetic as wel

Explain the hormonal control of the reproductive system, Explain the hormon...

Explain the hormonal control of the reproductive system in human male. Define totipotency. Verify the two different routes of regenerating plantlets from callus culture.

What is posterior aneurysm? , What is  Posterior Aneurysm? The te...

What is  Posterior Aneurysm? The technique of Posterior Aneurysm operation is the same. Care must be taken to avoid injury to the posterior papillary muscle and poster

Explain about the energy requirements in elderly, Explain about the Energy ...

Explain about the Energy Requirements in elderly? Based on the Benedict - Harris equation for men and women, the daily energy requirements can be calculated. For Men: 66 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