Transport in Animals - F211 0.0 / 5 ? BiologyTransport in animalsASOCR Created by: KHillCreated on: 27-11-14 15:08 For larger animals, diffusion is... not an efficient system alone as not all of the cells are near their environment 1 of 7 what happens to oxygen/nutrients which diffuse into multicellular organisms? The oxygen/nutrients are used up by the outer layers of cells and so will not reach cells deeper within the body 2 of 7 Large surface-area-to-volume ratio limits what in organisms? Growth 3 of 7 To allow animals to grow larger they need what? A range of tissues & structural support to give the body strength 4 of 7 When animals grow larger... their volume increases but not their surface area 5 of 7 Diffusion alone cannot support larger organisms because... they have a smaller surface-area-to-volume ratio so the surface area is not large enough to allow enough nutrients to diffuse into the organism 6 of 7 Animals that do which 2 things need more energy? Animals which keep themselves warm and which are very active 7 of 7
Comments
No comments have yet been made