3.2.2 Group size

Another significant feature of a work group is its size. To be effective it should be neither too large nor too small. As membership increases there is a trade-off between increased collective expertise and decreased involvement and satisfaction of individual members. A very small group may not have the range of skills it requires to function well. The optimum size depends partly on the group's purpose. A group for information sharing or decision making may need to be larger than one for prob
Author(s): The Open University

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1.10 Changing sea-level

Sedimentary rocks reveal how environmental conditions in Britain's geological past were extremely different from those of the present day (in fact ‘Britain’, like the rest of the Earth's geography is transitory when viewed in terms of the very long span of geological time). As well as evidence from sedimentary rocks, recent landforms also indicate that in the more recent geological past (within the Quaternary Period), sea-level was not the same as it is at present.

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2.4 Review

In working through this section, you have identified some of your initial expectations and I have explained some of what I think you will discover as you work through the unit. It would be appropriate at this point to look at some of the questions I asked you about your expectations again and note ways your expectations have changed.

Spend a total of around 30 minutes on the next three activities.

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Clasificación y Peritaje de Obras de Arte
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3.2.4 Functional and team roles

When individuals are being selected for membership of a team, the choice is usually made on the basis of task-related issues, such as their prior skills, knowledge, and experience. However, team effectiveness is equally dependent on the personal qualities and attributes of individual team members. It is just as important to select for these as well.

When we work with other people in a group or team we each bring two types of role to that relationship. The first, and more obvious, is our
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Whistler and the Thames


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Huidaandoening : Smetten
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Dit leermiddel omvat een Prezi over smetten en biedt antwoorden op vragen als: 

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Because an athlete's schedule is often so busy, good nutrition can often take a back seat. UW Medical Center Dietician, Alysun Deckert, provides 10 easy nutrition tips to help athletes stay on track and reach their peak performance.
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3.5 Summary of Section 3

Behavioural mechanisms for reducing water loss are integrated with physiology. While Dipodomys rests in a cool burrow, the nasal counter-current heat exchanger cools exhaled air, conserving water vapour evaporated from respiratory surfaces. Long loops of Henle operate as counter-current multipliers, producing highly concentrated urine. Desert foxes use panting for evaporative cooling, but high rates of evaporative water loss cannot be sustained; hence the crucial importance of dens for
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3.5 Muscle

There are different sorts of muscle in the body and they have different functions. Skeletal muscles are the muscles that, for example, are used for movement in your arms and legs.

Skeletal muscles store glucose as glycogen (Figure 4) and are able to use glucose as a fuel. Insulin stimulates muscles to take up glucose, and w
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Video Brain Teaser #56
Videos that provide viewers with brain teasers/mental puzzles. These may consist of problems dealing with the arrangement of matchsticks, coins, and other items. May include pencil drawing games, optical illusions, hidden images and "Find the Twin" problems.
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#288: The data cure: The changing science of biology and its impact on your health care

Molecular biologist and science policy leader Professor Keith Yamamoto discusses the current revolution in biological sciences and the emerging field of precision medicine. Presented by Dr Shane Huntington.