Which statement best describes how a major change in the size of one population affects an ecosystem?

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

According to this food web which of the following would be considered primary consumers

What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.