Ecosystems need producers because they are the start of the food chain.
Producers are consumed by first consumers, the second consumers and so on.
Answer:
The answer you're looking for is "Solution".
Layer c is the oldest and then it’s b and a
<span>The correct answer is Paramecia, Euglenoids, and Mold. These are all unicellular eukaryotic organisms. Mold may seem like one big piece but it's actually a bunch of unicellular organisms living together and constantly spreading over foor or similar things. They are most commonly predators.</span>
Answer:
tell the teacher you'll give her some nice hotdog for an A+