What would happen to all trophic levels in your choice of ecosystem (ocean, desert, etc) if an invasive species was introduced that consumed the primary producers at the bottom of the energy pyramid. What would happen to each trophic level? How would a species have to adapt in order to survive?

1. Each trophic lvl would decrease in population.

2.The species will have to adapt by finding new food and most likely a new area to live if the invasive species is that bad.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

the answer is "a.) well–developed vascular system."

explanation: