The photograph shows half a watermelon fruit, Citrullus lanatus, containing seeds. © Peter Hermes Furian / Alamy Stock Watermelon plants are grown in all parts of the world. Watermelon seeds can be diploid with 22 chromosomes or tetraploid with 44 chromosomes. Tetraploid seeds have different food stores and thicker seed coats than diploid seeds. Watermelon seeds respire their food stores during germination to develop into seedlings. A student formed the following hypothesis: Tetraploid seeds have a higher respiratory quotient $$\((R Q)\)$$ than diploid seeds Plan an investigation to find evidence to support or reject this hypothesis. Suggest two limitations of your proposed method. (2) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

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