Question

below is a food web from shenandoah national park, a forest ecosystem in virginia.
which of these organisms contain matter that was once part of the silver maple? select all that apply.
black bear
bolete fungus
bobcat
beaver
parasol fungus

Explanation:

Step1: Analyze the food web

In a food web, matter is transferred from one organism to another through feeding relationships. Producers (like the silver maple) are the base, and consumers (herbivores, carnivores) and decomposers (fungi) obtain matter from other organisms.

Step2: Check each organism

• Black bear: There is no direct or indirect connection (via the food web shown) from the silver maple to the black bear. The black bear's food source in the web is the persimmon tree.
• Boletus fungus: If the boletus fungus has a feeding relationship (e.g., decomposing parts of organisms that have a connection to the silver maple or directly getting nutrients from the silver maple - though the web isn't clear on this, assume no based on the given web)
• Bobcat: There is no direct or indirect connection (via the food web shown) from the silver maple to the bobcat. The bobcat's food sources in the web are the gray fox and other animals not connected to the silver maple.
• Beaver: The beaver has a direct connection (as per the food - web arrows) to the silver maple. So, it contains matter from the silver maple.
• Parasol fungus: If the parasol fungus has a feeding relationship (e.g., decomposing parts of the silver maple or organisms that feed on the silver maple). Assuming based on the food - web arrows (if there is an arrow from silver maple to parasol fungus or to an organism that the parasol fungus decomposes which has a connection to the silver maple).

Answer:

beaver, parasol fungus