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342: Economic Rent
343: Homeostasis
344: Responding to Changes in the Environment
345: Respiration
346: Transport Systems - The Blood, Heart and Transport in Plants
347: Gaseous Exchange in Animals
348: Photosynthesis
349: Digestion
350: Cellular Organisation and Function
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341: Interest
Interest: reward for parting with liquidity
The interest rate is decided by the demand for and supply of loans.
The higher the risk, the higher the interest. They charge more to discoura..
342: Economic Rent
Economic rent: what you get over and above transfer earning.
Transfer earning: the next best paid job
Rent of ability: special talent/ability that earns you income much greater than the average
..
343: Homeostasis
Homeostasis is defined as the maintenance of constant internal
conditions within organisms. The principle can be developed in a wide
range of contexts, including the maintenance of balanced water leve..
344: Responding to Changes in the Environment
All organisms respond to chnges in their environment and this section
explores some of the ways in which they do this. The human eye is
studied as an example of a receptor organ.Stimuli: Changes in ex..
345: Respiration
This section introduces respiration as a process for transferring
energy from food (e.g. glucose) to the cells of an organism. Oxygen is
normally required for respiration and carbon dioxide is produce..
346: Transport Systems - The Blood, Heart and Transport in Plants
This section allows transport systems to be examined. The need for
transport systems in large organisms is considered, together with the
ways in which the major transport systems of plants and mammals..
347: Gaseous Exchange in Animals
This section provides the opportunity for investigating how the human
breathing system allows the exchange of fases between alveoli and the
blood caplillaries. The effects of cigarette smoke on health..
348: Photosynthesis
This section examines the physiology of photosynthesis and how it
related to agriculture and food production. The value of photosynthesis
as an oxygen producing process is examined and is related to t..
349: Digestion
Digestion is presented as a means of transforming complex food
substances into smaller molecules prior to absorption into the body.
The functions of the human digestive systems are examined, as well a..
350: Cellular Organisation and Function
This section looks at the cell as the basic unit from which most living
organisms are constructed. The pats of a cell are identified and their
functions considered. Differences between plant and anima..
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