What do Blow Fly eggs feed on during their development?

Blow Fly eggs feed on dead animal tissue during their development, making this the correct answer. The life cycle of blow flies begins when the female lays her eggs on decaying organic matter, particularly carrion or decomposing animals. The larvae, or maggots, that hatch from these eggs thrive on the nutrients found in the dead tissues. This feeding behavior plays a crucial role in the ecosystem by aiding in the decomposition process and recycling nutrients back into the environment.

The other choices do not accurately represent the diet of blow fly larvae. Plant tissue and freshly cut grass would not provide the necessary nutrients that blow fly larvae require for growth and development, as they are specialized for consuming animal matter. Fungal matter also does not align with the dietary needs of blow fly larvae, which specifically require the rich proteins found within decomposing animal tissues to sustain their early life stages. Thus, the direct association of blow fly larvae with dead animal tissue clearly identifies it as the correct answer.