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Describe the structure of the human heart and how the blood is pumped by the heart.

The heart can be described as a double pump system. It consists of 4 main chambers (sections) - 2 atria and 2 ventricles split into left and right. The atria have relatively thin walls whereas the ventricles...
WC
5101 Views

Describe the structure of glycogen

Glycogen is a polysaccharide of alpha glucose, joined together by glycosidic bonds which provide a branched structure.
IS
Answered by Isabel S. • Biology tutor
4767 Views

Ethics: Considering Deontological Arguments of Ethics, to what extent do the strengths and weaknesses demonstrate the plausibility of this argument as a guideline for moral decision making?

Deontological arguments follow the Kantian notion, of the same name, that identifies that actions should be performed because they wrong or right in themselves rather than the consequences they procure. Imme...
EA
2800 Views

When do you have to make past participles agree if you are using avoir?

The basic rule is that you don’t have to make the past participle agree with the object (the noun) in the passé composé: ‘I picked the flowers’ is ‘j’ai cueilli les fleurs’ even though ‘fleurs’ is feminine p...
JH
Answered by James H. • French tutor
2094 Views

What is the difference between star and sea? When is star used?

both 'estar' and 'set' mean 'to be', however they are not used interchangeably. Estar is used to describe a feeling or location. For example: Estoy en su casa OR estoy muy triste. But ser is used when someth...
EB
Answered by Ellie B. • Spanish tutor
2197 Views