Complex sentence: For example, slime molds secrete cyclic adenosine monophosphate upon starvation, stimulating individual cells in the immediate environment to aggregate, and yeast cells use mating factors to determine the mating types of other cells and to participate in sexual reproduction.
Split into simpler sentences: For example, slime molds secrete cyclic-AMP upon starvation, which stimulates individual cells in the immediate environment to aggregate. Yeast use mating factors to determine the mating types of other yeast and to participate in sexual reproduction.