Size and SA 🐘🐭

• Explain how the body shape of a seal is adapted to living in a cold environment?

  Small surface area to volume ratio so heatloss is reduced
• Describe and explain the changes in the rate of blood flow to the different organs during a long dive.

  The brain is the same - the rate of blood flow is constant

  The brain controls the rest of the body - but the lungs are not used as the seal is not breathing.

  
• explain 3 features of plants shown that are adaptations to desert conditions?


  Shallow roots - allow rapid uptake of rainfall

  Deep roots - to access deep groundwater

  Swollen stem - water storage
• z but why? 🌳

  Widespread of roots for rapid water absorption
• describe the relationship between the size and surface area to volume ratio

  As size increases the surface area decreases
• Suggest the practical advantage to measuring the. Asses of frogs tadpoles and adults compared to their volumes

  More accurate
• Why is oxygen uptake a measure of metabolic rate in organisms?

  Respiration uses oxygen which provides energy
• A student looked at these results and said they could not make a conclusion about The relationship between stage of development and the metabolic rate.

  There is no information about the egg so you cannot compare the stages, therefore there is no statistical information