Final answer:
An organism with a haploid number of 36 will have a diploid number of 72, as the diploid number is twice the haploid number.
Step-by-step explanation:
If an organism has a haploid number of 36, it means that it has 36 chromosomes in its gametes, which are the reproductive cells like sperm and eggs. The organism's diploid number, which is the number of chromosomes found in its somatic (body) cells, would be twice the haploid number because it includes one set of chromosomes from each parent. Therefore, the diploid number would be 36 chromosomes from one parent plus 36 from the other, resulting in a total of 72 chromosomes.