Other questions in this quiz

2. Animals that do which 2 things need more energy?

  • Animals which have a fast metabolism and which sleep a lot
  • Animals which keep themselves warm and which are very active
  • Animals which regulate their body temperature and have a fast metabolism

3. To allow animals to grow larger they need what?

  • A range of tissues & structural support to give the body strength
  • Bones and Ligaments
  • A large amount of cells to duplicate via mitosis
  • A range of systems in the body which support the growth

4. what happens to oxygen/nutrients which diffuse into multicellular organisms?

  • The substances diffuse first in the deeper layers of cells, working their way to the outer layers
  • The oxygen/nutrients are used up by the outer layers of cells and so will not reach cells deeper within the body
  • The substances diffuse into cells in all layers
  • The substances diffuse

5. For larger animals, diffusion is...

  • not an efficient system alone as not all of the cells are near their environment
  • a better transport sytstem as the cells get the nutrients they are lacking in.
  • not an efficient system because it is too slow
  • the best transport system

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