Which of the below are required in an ecosystem in order for nutrient cycling to take place?
A. producers and decomposers.
B. producers, primary consumers, and decomposers.
C. producers, primary consumers, secondary consumers, and decomposers.
D. producers.

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Which animal is a producer in this ecosystem

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive