What is not a possible indicator of a biological agent? select one: abandoned spray devices unusual number of sick or dying people an outbreak of psoriasis unscheduled and unusual spray being disseminated

Outbreak of psoriasis

Explanation:

The out break of psoriasis is caused due to the weak immune system which is enhanced during certain weather condition. Other conditions can also increase the susceptibility towards this disease such as certain medications, dry weather conditions et cetera.

Other reasons such as abandoned spray device, unusual sickness of people, unscheduled and unusual spray being disseminated. These activities are possible indicator of biological agent.

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.