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.
Write down the three main types of RNA? Give a brief explanation of heterogeneous RNA?
Name the constituent elements of the blood?
In prehistoric Greece the father of Medicine, Hypocrates, explained a method of diagnosing the diabetes mellitus by tasting patient's urine. Describe the physiological description for this archaic method?
Into how many kinds acquired immunity is categorized. Name them.
Describe briefly the term vascular cambium? And also write down its function?
Name the valves of the venous system? Also explain their function?
1. Reader's Corner is a small book store that rents space in a neighborhood shopping mall for $19,200 a year. Utilities add another $7,800 yearly. The total staff salaries and benefits projected for next year equal $56,000. Also, Readers Corner spend
Name the fruiting bodies existed in some fungi?
What is role of DNA and RNA in replication
Define microphages? Answer: Oesnophils, Neutrophils, basophils are termed as microphages.
18,76,764
1931757 Asked
3,689
Active Tutors
1434073
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!