The phone ringing is an example of a/an: a. extinction. b. stimulus generalization. c. stimulus discrimination. d. discriminative stimulus.

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

Eutrophication caused by human nutrient pollution.