How to create a food web

Using the list of organisms below, create a hypothetical food web for the Isle Royale ecosystem.

List of Organisms, Isle Royale:

Red squirrel
Snowshoe hare
Moose
Beaver
Wolf
Balsam fir tree
Aspen tree
White birch tree
Aquatic plants
Maple tree
Pine tree

Now that you have constructed a food web, let’s use it to discuss trophic levels in an ecosystem. Using your food web and the vocabulary below, answer the following questions.
Indicate (with a P) in your drawing all the organisms that function as producers.
Indicate (with a C) in your drawing all the organisms that function as consumers.
Identify (using roman numerals) all the trophic levels that an organism occupies.
If the moose population was removed, what would be the effect(s) on the other organisms in the ecosystem?