Other questions in this quiz

2. what happens in most human trials

  • humans are raced on an Olympic course
  • one group takes new drug. the controls (another group) takes a placebo or an existing drug for that illness
  • a group of people take a new drug

3. why are cappilary walls very thin (only one cell thick)

  • to allow oxygen and food to diffuse into cells and waste to diffuse out of cells
  • because the blood is at a low pressure
  • because it doesn't carry a lot of blood

4. why is the amount of muscle and elastic fibres small

  • because high pressure does not need to be maintained as the blood is at a lower pressure in veins than in arteries
  • because there is less blood being pumped from th right lower chamber
  • because there is more fat surrounding themwhat do cappilaries do

5. when does antimicrobial resistance develop

  • when it rains chocolate
  • when random changes (mutations) in genes of bacteria or fungi make new varieties that the antimicrobial cannot kill or inhibit
  • when random changes (mutations) in genes of brains kill microorganisms

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