Question

1. an aquatic ecosystem contains 15000 algae, 1000 freshwater shrimp, 80 perch, 10 northern pike, and 1 osprey. draw a pyramid of numbers that represents this ecosystem.

Explanation:

Step1: Identify trophic levels

Algae are primary - producers at the base. Freshwater shrimp are primary consumers. Perch are secondary consumers. Northern pike are tertiary consumers. Osprey is a quaternary consumer.

Step2: Draw the pyramid

Draw a pyramid with the base wide representing the large number of algae (15000). Each successive level above is narrower with the number of organisms decreasing. The second level represents 1000 freshwater shrimp, the third level 80 perch, the fourth level 10 northern pike, and the top - most level 1 osprey.

Answer:

A pyramid with the base labeled "Algae, 15000", the second level labeled "Freshwater Shrimp, 1000", the third level labeled "Perch, 80", the fourth level labeled "Northern Pike, 10", and the top - most level labeled "Osprey, 1".