Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport...

Answer Details

Organism IV is likely to have the most complex transport system because it has the smallest surface/volume ratio. The surface/volume ratio is the ratio of the organism's surface area to its volume. It is an important factor in determining an organism's ability to transport materials, as it affects the rate at which materials can be exchanged between the organism and its environment. An organism with a smaller surface/volume ratio will have a larger surface area relative to its volume, which allows for more efficient transport of materials. This is because a larger surface area provides more opportunities for materials to enter or exit the organism, while a smaller volume reduces the distance that materials must travel to reach their destination. Organism IV has the smallest surface/volume ratio of the four organisms, which means it has the largest surface area relative to its volume. This suggests that it has a more complex transport system than the other organisms, as it would need to be able to efficiently transport materials across a larger surface area. In contrast, organism I has the largest surface/volume ratio, which means it has the smallest surface area relative to its volume. This suggests that it would have a simpler transport system, as it would not need to efficiently transport materials across a large surface area. Therefore, based on their surface/volume ratios, organism IV is likely to have the most complex transport system.