Do fishes present an closed or open circulatory system, Biology

Assignment Help:

Q Do fishes present an closed or open circulatory system? How many chambers does a fish heart have? How does blood flow throughout the fish body?

As in every vertebrate the circulatory system of fishes is closed that is blood flows only within blood vessels.

The fish heart has only two consecutive chambers: a muscular ventricle and a thin-walled atrium. The arterial (oxygenated) blood comes from the gains and gills arteries towards tissues, and then venous blood is collected by veins and reaches the atrium of the heart passing to the ventricle that pumps the venous blood towards the gills to be again oxygenated.


Related Discussions:- Do fishes present an closed or open circulatory system

How are living beings divided into two groups, Q. According to the cellular...

Q. According to the cellular organization how are living beings divided into two groups? Cellular beings are divided into two groups, unicellular beings and the prokaryotes who

What is meant by post-translational modification, What is meant by "post-tr...

What is meant by "post-translational modification"? Give examples of post-translational modifications of the following amino acids: a. Serine b. Lysine C. Choose a third amino acid

Eye ball, WALL OF EYE BALL - Outer to inner 3 layers present. 1. Scl...

WALL OF EYE BALL - Outer to inner 3 layers present. 1. Sclerotic or fibrous Tunic 2. Choroid or uvea or vescular Tunic. 3. Retina or neuro sensory tunic. Sclerotic

Metabolic events, Metabolic Events Let us now examine the changes that...

Metabolic Events Let us now examine the changes that occur in the seeds after they imbibe water. In general, the most important metabolic events are: Degradation

What is osmotic pressure, Q What is osmotic pressure? Osmotic pressure ...

Q What is osmotic pressure? Osmotic pressure is the pressure produced in an aqueous solution by a region of lower solute concentration upon a region of higher solute concentrat

Shortness of breath, Shortness of Breath It is a subjective sensation...

Shortness of Breath It is a subjective sensation of being unable too draw in enough air to breathe. Most often, this is associated with congestive cardiac failure and may

What are steroid hormones , Cholesterol is the precursor of the five major...

Cholesterol is the precursor of the five major classes of steroid hormones.The synthesis of steroid hormones is initiated by the removal of a six-carbon unit  from  carbon  20  of

Which is the first heart chamber into which blood en, Which is the first (h...

Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartments?

What is the climax stage of an ecological succession, Q. What is the climax...

Q. What is the climax stage of an ecological succession? The climax stage is the stage of an ecological succession in which the community of an ecosystem turn into stable and d

What happen when auxin concentration in plant is over, What happens when au...

What happens when auxin concentration in some structures of the plant is over the action range of the hormone? In some of parts of the plant (roots, stem, lateral buds) there a

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