Circulatory system and chambers in heart of fish
Explain, whether fishes have an open or closed circulatory system? How many chambers are there in heart of the fish and how does blood flow throughout fish body?
Expert
In every vertebrate, including fish the circulatory system is closed, that is, blood flows within the blood vessels.
Fish heart has two consecutive chambers:
a) Thin-walled atrium and
b) Muscular ventricle.
The arterial or the oxygenated blood comes from the gills and gains arteries towards the tissues, and then the venous blood is collected by the veins and reaches atrium of heart passing to ventricle which pumps venous blood in the direction of the gills to become again oxygenated.
compare the methods of digestion in protozoans and sponges
Internet Advertising: Nowadays Internet is one of the easiest ways to advertise which in turn helps marketers to consume. There are certain rules that need to be followed and applied as alike to other forms of advertising. Those rules will help busine
Extracellular digestion: It is that digestion in which food breaking into utile molecules which can be internalized by the cell is prepared in the extracellular space, that is, exterior the cell. In extracellular digestion the cells secret substances
Briefly explain the History of Unix for Bioinformatics?
Specify how old is the universe?
What are fibroids? And what are their symptoms.
Give an explanation for bleeding which accompanies menses?
Name the hormones secreted by neurohypophysis? Describe their respective functions?
Explain the term pericardium, pleura and peritoneum?
Why in some situations is mitosis a synonym of reproduction?
18,76,764
1947477 Asked
3,689
Active Tutors
1416094
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!