The correct answer is B. Heterotrophs compete for the same food source.
Explanation:
In ecology, a food web refers to a web or net that represents the relationship between different organism in terms of food. In this, there are autotrophs that produce own food or energy such as plants and heterotrophs that need to feed on others to obtain energy. In the case presented, both the deer and the beer can be classified as heterotrophs because they both feed on other organisms to obtain food (bears feed on fish and plants and deer feeds on plants). Besides this, as they both feed on the same type of food (plants) they complete for it. Thus, the statement that describes the relationship between the two organisms is "Heterotrophs compete for the same food source".
