Gross primary productivity (GPP) is the chemical energy produced by the plants (producers) in a given space and time. A small portion of GPP is utilized by the plants for respiration ( R ) and growth. The energy left after respiration by the primary producers is known as net primary productivity (NPP).

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Answer 1

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 56, Problem 7TYU

Summary Introduction

Introduction:

Gross primary productivity (GPP) is the chemical energy produced by the plants (producers) in a given space and time. A small portion of GPP is utilized by the plants for respiration (R) and growth. The energy left after respiration by the primary producers is known as net primary productivity (NPP).

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Forest trees have trunks, branches, and big roots, contributing to large amounts of total biomass. Grasslands have comparatively less biomass, but have a larger net primary production than that of forests. Why is this so? A. Less respiration is needed in the forest habitat B. More biomass is added in a grassland in the same time as that of forests C. The number of consumers within the forest is greater D. Solar energy is converted to chemical energy at a much higher rate in forests

Which statement best explains why persistent, fat-solublechemicals such as methylmercury accumulate in the highesttrophic levels?a. Animals at the highest trophic levels eat the lowest-quality food.b. The amount of biomass increases in each trophic level, and largeorganisms accumulate the most methylmercury.c. Large organisms are often herbivores, so they would consumemethylmercury directly.d. Methylmercury does not leave an animal’s body; each predatortherefore consumes the mercury contained in many prey.

Assume that the producer level in your trophic pyramid contains 12,000,000 kcal of energy. Write the number of kcal that would be available to the other two levels of the pyramid.

Answer 2

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 56, Problem 7TYU

Summary Introduction

Introduction:

Gross primary productivity (GPP) is the chemical energy produced by the plants (producers) in a given space and time. A small portion of GPP is utilized by the plants for respiration (R) and growth. The energy left after respiration by the primary producers is known as net primary productivity (NPP).

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Answer 3

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 56, Problem 7TYU

Summary Introduction

Introduction:

Gross primary productivity (GPP) is the chemical energy produced by the plants (producers) in a given space and time. A small portion of GPP is utilized by the plants for respiration (R) and growth. The energy left after respiration by the primary producers is known as net primary productivity (NPP).

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Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 56, Problem 7TYU

Summary Introduction