Question

draw or add images here

1. phytoplankton -> shrimp ->snapper -> shark

there are 2,500 kcal available for the 1st trophic level
there are ____ kcal available for the 2nd trophic level.
there are ____ kcal available for the #rd trophic level.
there are 2.5 kcal available for the 4th trophic level.
fill in the organisms and energy amounts on the pyramid to the right.

Explanation:

Step1: Energy transfer rule

In an energy pyramid, only about 10% of the energy is transferred from one trophic level to the next.

Step2: Calculate energy for each trophic level

• 1st trophic level (Phytoplankton): Given as \(2500\) kcal.
• 2nd trophic level (Shrimp): \(2500\times0.1 = 250\) kcal.
• 3rd trophic level (Snapper): \(250\times0.1=25\) kcal.
• 4th trophic level (Shark): \(25\times0.1 = 2.5\) kcal.

Answer:

From left to right (1st - 4th trophic level): \(2500\) kcal, \(250\) kcal, \(25\) kcal, \(2.5\) kcal.