1. What is meant by the economizing problem?
The economizing problem stems from two related facts. Economic wants are unlimited
because they cannot be completely satisfied with the existing limited supply of res
Internal assessment criteria
The exploration is internally assessed by the teacher and externally moderated by the IB using assessment
criteria that relate to the objectives for mathematics HL.
Each exploration is assessed against the
Beschtze Sig an
SO SPIELST DU
SO NUTZT DU DEN
Habt ihr mal
11.3 The kidney summary of mark schemes
removal of waste from the body;
products of metabolism / toxic waste products;
Draw and label a diagram of the kidney.
UNIT 47B: Acquired Immunity
View the full list of SHS IB Bio Units
IB topic(s): 6.3 and 11.1
Essential Idea(s): Immunity is based on recognition of self and destruction of foreign material.
Unit Length: 3 days
11.1 Defence against infectious disease summary of mark schemes
Define active and passive immunity.
active immunity production of antibodies by the organism itself;
passive immunity acquisition of antibodies from anot
UNIT 1: Characteristics of Life
The evolution of multicellular organisms allowed for cell specialization and cell replacement
IB Assessment Statements and Class Objectives
According to the cell theory, living organisms ar
Nachdem du die Air-Renner-Missionen gewonnen hast, stehen
die Rennen auch als Minispiele zur Verfgung. Aktiviert werden
sie, wie das Jet-Board-Spiel, an dem Energieschirm in der
Sackgasse vor dem Stadion. Wenn du die
SO SPIELST DU
So nutzt du den
SO NUTZT DU DEN
Moooment mal. Immer langsam mit den jungen Ottsels. Bevor wir
zwei so richtig loslegen, erzhle ich dir noch
1. What are the two major problems facing the health care system?
First, the costs of health care are high and growing rapidly. Second, many Americans are
uninsured and do not have access to health care or adequ
1. What was the importance of the Federal Trade Commission Act of 1914?
The act set up an independent government agency to investigate and to enforce
antitrust laws and the provisions of the Clayton Act. The act
1. What is energy economics and what does it have to say about energy demand and efficiency?
Energy economics studies how people deal with the fact there are relatively unlimited wants for
energy and relatively
1. What is the difference between the demand curve for a resource under pure
competition and under imperfect competition?
Under pure competition, product price is constant; therefore, the downward slope
of the D
1. The president of a toy company asks you for advice about whether the company should
cut the price of its best-selling doll this year based on the following information: last
year the company cut the price of
1. How is total government spending defined?
What is its size in the economy?
Total government spending consists of government purchases of goods and services and
transfer payments. Each has a different effect o
1. List nine characteristics of the market system.
The nine characteristics discussed in the text are: (1) private property; (2) freedom of
enterprise and choice; (3) self-interest as the major motivation for ec