A) Explain how each of the following three ecological disruptions would affect the number and size of trophic levels in an ecosystem
i. Decrease in the available sunlight
ii. Increase in the number of producers
iii. Increase in the availability of a resource that was limiting the herbivore population size
B) Describe the concept of trophic efficiency

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )

D.) domain, kingdom, phylum, class, order, family, genus then species