Examine the photo below of a very basic food web. In 2-3 sentences, describe what would happen to this ecosystem if the organisms indicated by the circle and arrow did not exist.

Grading Considerations:

Your answer should include the name of the group of organisms circled and what their job/role is in a food web
Your answer should include an explanation of the effects it would have on the ecosystem if those organisms did not exist. In other words, why are they so important?
Your answer should be in 2-3 sentences. In an effort to combat plagiarism, answers longer than 4 sentences will not be considered. Answering concisely and to the point is evidence for your understanding of the topic.
(2 points)
0 / 150 Word Limit
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If the plankton indicated by the arrow and circle are removed from the ecosystem, it would disrupt the entire food web. Plankton are the primary producers in the ocean, providing food for many organisms including fish, whales, and seabirds. Without plankton, the entire ecosystem would collapse due to lack of food source for higher trophic levels.