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What kinds of valves are found in the human circulatory system and how do they differ?

The three main kinds of valves in the human circulatory system are atrioventricular valves, semi-lunar valves and pocket valves. Atrioventricular...

EB
Answered by Elanor B. Biology tutor
5504 Views

Décrivez un thème important traité dans le livre, le film ou la pièce que vous avez étudié(e)

Thérèse Raquin (1867)
Le philosophe allemand Nietzche a déclaré que Dieu était mort. Cette idée a poussé Zola à écrire un roman où les personnages ne son affectés que par leur 'sang' et leur...

CD
Answered by Charlie D. French tutor
2527 Views

What are the two main forms of biological classification, and how do they differ?

Artificial classification is used to divide organisms by their characteristics, which can vary depending on the specific situation which you are considering. Features that are considered are known as anal...

LK
Answered by Luke K. Biology tutor
6257 Views

Describe the electrical activity that occurs during the cardiac cycle?

The cardiac cycle, by convention, is considered to begin with depolarisation of the sino-atrial node (SAN). This depolarisation spreads across the two atria, causing the right and left atria to contract. ...

LK
Answered by Luke K. Biology tutor
2788 Views

Describe how an atheroma may lead to a myocardial infarction.

An atheroma is the deposition of fatty material in the innermost lining of an artery (caused by the process of 'atherosclerosis').
Atheromas have a tendency to rupture and this increases the likelih...

JW
Answered by Jovian W. Biology tutor
8665 Views

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