Explain the difference between positive and negative feedback mechanisms and use examples that are easy to understand for non-biologists, such as valves releasing steam in a pipe, ovens pre-heating to certain temperatures, and so on.

If a fungus a plant take up water and nutrients, that would be an example of which type of relationship? a. commensalism b. symbiotic mutualism c. predation d. parasitism

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.

2. which is the last step in the scientific method?