Let’s go step by step to solve Question 4A.
Question 4A asks:
“How is it possible that the worms/amphipods are considered part of two groups?”
Looking back at the worksheet, in Question 3, we’re told that species groups are organized by trophic level — meaning their role in the food web (like what they eat and who eats them).
In Question 3E, it says:
> “Decomposers: These organisms get their energy by consuming dead matter. Notice, that worms and amphipods are primary consumers and decomposers.”
So, worms/amphipods are listed under
two different roles:
1.
Primary Consumers – This means they eat producers (like plants or algae). In this case, they might be eating sea floor algae or floating algae.
2.
Decomposers – This means they also eat dead stuff (detritus), breaking it down and recycling nutrients.
That’s why they belong to two groups — because they do two jobs in the ecosystem!
Think of it like a person who works two jobs: one as a teacher and one as a coach. They’re not just one thing — they help in different ways.
So, worms/amphipods are special because they eat living plants (making them primary consumers) AND they eat dead stuff (making them decomposers). That’s how they can be in two groups.
Final Answer:
Worms/amphipods are considered part of two groups because they act as both primary consumers (eating living plants like algae) and decomposers (eating dead matter), so they play two important roles in the food web.
Parent Tip: Review the logic above to help your child master the concept of chesapeake bay worksheet.
