Top answers


Discuss the consequences of imposing an indirect tax on a demerit good (unhealthy food)

This is a common question asked in past paper 1s for both SL and HL Economics. To approach this as a 15 marker, one would first define the key terms in the question such as defining a demerit good and indire...
FB
21052 Views

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 valves are found in the heart and separate the atria and ve...
EB
Answered by Elanor B. Biology tutor
6368 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 'milieu'. En fai...
CD
Answered by Charlie D. French tutor
2848 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 analogo...
LK
Answered by Luke K. Biology tutor
7031 Views

How are red blood cells adapted to carry out their function?

Contain haemoglobin - a molecule that can bind reversibly to oxygen. Biconcave disk shape - increases surface area to allow more diffusion of oxygen. No nucleus - allows more space for haemoglobin. Flexible ...
LC
Answered by Lily C. Biology tutor
11938 Views