Chapter 21, Problem 10TQ

a.

Summary Introduction

To describe:

If each grasshopper passes hundred Kilocalories to the cardinal when eaten, how many grasshoppers would the cardinal have to consume to get 10,000 Kilocalories?

Concept introduction:

An energy pyramid is characterized by the amount of energy available to organisms in an ecosystem. The energy pyramid consists of various levels. Each level coincides a stage in a food chain and it is known as a trophic level. At every trophic level, a certain amount of energy taken by the producers is lost as heat, particularly during cellular respiration. Approximately, 10 percent of the energy at each trophic level has moved to the subsequent trophic level.

b.

Summary Introduction

To describe:

How many Kilocalories of grass are necessary to generate 10,000 Calories worth of grasshopper?

Concept introduction:

An energy pyramid is characterized by the amount of energy available to organisms in an ecosystem. The energy pyramid consists of various levels. Each level coincides a stage in a food chain and it is known as a trophic level. At every trophic level, a certain amount of energy taken by the producers is lost as heat, particularly during cellular respiration. Approximately, 10 percent of the energy at each trophic level has moved to the subsequent trophic level.

c.

Summary Introduction

To describe:

Where does the lost energy go?

Concept introduction:

An energy pyramid is characterized by the amount of energy available to organisms in an ecosystem. The energy pyramid consists of various levels. Each level coincides a stage in a food chain and it is known as a trophic level. At every trophic level, a certain amount of energy taken by the producers is lost as heat, particularly during cellular respiration. Approximately, 10 percent of the energy at each trophic level has moved to the subsequent trophic level.