Energy storage and structure support
I don’t exactly understand the question, I’m open to help though!!!
The answer is D. This is illustrated in the attached punnet square . There 25% homozygous dominant and the 50% heterozygous will have a polka-dot ponytail phenotype. The 25% homozygous recessive will have a solid color tail. Therefore the phenotypic ration is 3:1 (75%:25%).
Producers: Create food/Product
Consumers: Eat the food/Use the product
Decomposers: They can decompose after death. They could be Producers or Consumers while they are living, but ya' know... they are dead now, so....
I hope I helped.