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

How does the breathing process correct acidosis, Q. How does the breathing ...

Q. How does the breathing process correct acidosis? The increment of the respiratory frequency makes the body eliminate more carbon dioxide and to shift the equilibrium of the

Preparation of patient for fasting blood sugar analysis, Preparation of Pat...

Preparation of Patient for Fasting Blood Sugar Analysis 1. Blood for fasting blood sugar (plasma glucose) analysis should be drawn after the individual has fasted overnight (8-

Hydrology, Hydrology Background: Hydrology is the study of the move...

Hydrology Background: Hydrology is the study of the movement and distribution of water resources. This is an important field of study in a dry climate like Utah. Although c

Alkoloids, what do you mean by alkoloids how are they usedin daily life wha...

what do you mean by alkoloids how are they usedin daily life what are the different types of alkoloids?

Lipids, How are lipids classified?

How are lipids classified?

Zoology assignment, topics for zoology assignment for plus one

topics for zoology assignment for plus one

Causes of non-ketotic hyperosmolar diabetic coma, Q. Causes of Non-Ketotic ...

Q. Causes of Non-Ketotic Hyperosmolar Diabetic Coma? The causes of NKHDC are given below: 1) Infections 2) Trauma 3) Burns 4) Myocardial Infarctions (heart attack)

Diestrus- estrous cycle, Diestrus- Estrous cycle This lasts 60 to 70 h...

Diestrus- Estrous cycle This lasts 60 to 70 hours during which functional regression of the corpora lutea occurs. The uteri are small, anaemic, and only slightly contractile.

Obelia, why obelia shows an intermediate grade of organisation

why obelia shows an intermediate grade of organisation

Draw a diagram that shows this arrangement, Please help with the following:...

Please help with the following: Using the letters S for ribose sugar and B for the nitrogeneus base, draw a diagram that shows the arrangement of these components into (a) a sin

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