Transport system in higher animals, Biology

Assignment Help:

Transport system in higher animals

The circulatory system in higher animals has undergone several changes during evolution.
The heart has become totally muscular.
It pumps the blood into well-defined blood vessels
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.
Deoxygenated blood is collected from the body parts and sent to the respiratory system for oxygenation.
In animals, like fish the blood is directly sent from the gills to all the body parts.
In higher animals oxygenated blood is sent back to the heart and then from there to body parts.
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

Describe the ideal primary stability, Less than ideal Primary Stability ...

Less than ideal Primary Stability Faulty osteotomy (a bigger osteotomy than required for the selected diameter of implant) can result when excessive force is used to disengage

What are the basic type of neurons, Q. According to the function of the tra...

Q. According to the function of the transmitted neural impulse which are the types of neurons? How different are the concepts of afference and efference of the neural impulse trans

Olericulture, Olericulture: It concerned with the cultivation or developme...

Olericulture: It concerned with the cultivation or development of vegetables yielding plants. Olericulture is the study of vegetable growing, dealing with the culture of non-woody

How does the pancreatic juice help the digestion of lipids, Q. How does the...

Q. How does the pancreatic juice help the digestion of lipids? What is the involved enzyme? The enzyme pancreatic lipase is present in the pancreatic juice this enzyme breaks t

Explain the types of foods used in space, Explain the types of foods used i...

Explain the types of foods used in Space? The various types of foods are enumerated herewith. Thennostabilized (T): Heat processed foods ("off-the-shelf' items) in aluminium

Do plants placed under an environment drier than the habitat, Do plants pla...

Do plants placed under an environment drier than the habitat where they are used to living have a reduction or an increase in the time during which their stomata remain open? I

Controlled hypothermia, Controlled Hypothermia Although birds and mamm...

Controlled Hypothermia Although birds and mammals frequently function in the homeothermic mode and maintain relatively high stable temperatures, many mammals and some birds ha

Define carbohydrate requirements for physical fitness, Define Carbohydrate ...

Define Carbohydrate Requirements for Physical Fitness? Carbohydrate is the primary fuel for high intensity exercise, Increased intake of carbohydrate on a consistent basis enab

Differences between electron acceptors and electron carriers, What are the ...

What are the differences between electron acceptors and electron carriers? Give an example of each.

What is the possible dna sequence, Insulin was the first protein to be sequ...

Insulin was the first protein to be sequenced biochemically. Assuming that there were no introns involved in the process, what are the possible DNA sequences that produced the last

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages