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Explain the difference between diffusion and active transport with examples.

Diffusion is the passive process by which molecules move across a semi permeable membrane down their concentration gradient from an area of high concentration to low concentration. An example is gaseous exch...
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Answered by Sarah M. • Biology tutor
9352 Views

How do Presidents veto legislation, and how significant is the presidential veto?

Presidents are not likely to always use the right to veto that they are given, they are usually reluctant to use them because many bills contain provisions that the president supports as well as opposes. The...
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Answered by Umra B. • Politics tutor
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To what extent is there disagreement on how effectively the constitution protects freedom (US politics a level)

conservatives define the word freedom in negative terms. e.g. non interference of big government, they believe that the constitution was designed to limit the size and power of the government. therefore it h...
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Answered by Umra B. • Politics tutor
2369 Views

320 people go on a coach trip. Each trip holds 53 people. Gary says 6 coaches are needed. Is Gary correct?

53 x 6 = 318320-318 = 2There are not enough coaches for the amount of people. 2 people would not be on a coach. 7 coaches are needed to ensure everyone has a seat on a coach.
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Answered by Arthur E. • Maths tutor
7543 Views

State and explain two ways in which domestic fuel consumption gives rise to negative externalities.

Emissions from power stations cause healthcare costs to local residents.2) Pollutants cause increasing health costs which the taxpayer has to meet(A negative externality is a spillover cost affecting third p...
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Answered by Arthur E. • Economics tutor
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