Fungi spores are haploid; what distinguishes haploid spores? Group of answer choices Haploid spores have a single set of chromosomes, half the number of chromosomes of diploid organisms. Like diploid organisms, haploid spores have a single set of chromosomes. Like diploid organisms, haploid spores have a double set of chromosomes. Haploid spores have a double set of chromosomes, half the number of chromosomes of diploid organisms.