Lizzie loves to stargaze at night. she has noticed that the moon appears to change shape over the course of the month, and she wants to investigate why this happens. she hypothesizes that the relationship of the sun, earth, and moon creates shadows on the moon. she sets up an experiment with a light bulb to represent the sun, a large beach ball to represent earth, and a smaller foam ball to represent the moon. she researches the position of the sun, earth, and moon at different times of a month and makes a model of the entire system.

most community's take hundreds of years to become stable

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

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.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.