A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Explain down bellow what happens to the cell in pictures not in words: Decreased pH in mitochondria Increased ATP Decreased pH in cytosol Increased hydrolysis Decreasing glycogen and triglycerides Increased MAP kinase activity Poor ion transport → For each one:→ What normally happens?→ What is wrong now?→ How does it mess up the cell?

1.) Community Diversity: The brown and orange line represent two different plant communities. a. Which color represents the community with a higher species richness? b. Which color represents the community with a higher species evenness? Relative abundance 0.1 0.04 0.001 2 4 6 8 10 12 14 16 18 20 22 24 Rank abundance c. What is the maximum value of the Simpson's diversity index (remember, Simpson's index is D = p², Simpson's diversity index is 1-D)? d. If the Simpson's diversity index equals 1, what does that mean about the number of species and their relative abundance within community being assessed?

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Question

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Answer 3

Question

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Answer 4

Question

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Answer 5

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Answer 6

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Answer 7

Chapter 42, Problem 2SA

Summary Introduction

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Answer 8

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Answer 11

Ch. 42 - In most ecosystems, producers use energy from...Ch. 42 - Prob. 2SA Ch. 42 - Organisms at the first trophic level ________. a....Ch. 42 - Primary productivity on land is affected by...Ch. 42 - An _______ is an autotroph. a. producer c....Ch. 42 - Most of Earths fresh water is _______. a. in lakes...Ch. 42 - Earths largest carbon reservoir is _______. a. the...Ch. 42 - Carbon is released into the atmosphere by ________...Ch. 42 - Prob. 9SA Ch. 42 - The ______ cycle is a sedimentary cycle. a....

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Solution Summary: The author explains that decomposers are organisms that feed on biological remains and breakdown organic material into its inorganic components.

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Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

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Chapter 42 Solutions

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Solution Summary: The author explains that decomposers are organisms that feed on biological remains and breakdown organic material into its inorganic components.

Concept explainers

Videos

Introduction: A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.

Want to see the full answer?

Chapter 42 Solutions

Introduction:

A biological community and its environment comprise an ecosystem. The energy flow through most ecosystems on Earth begins with autotrophic organisms or producers. The light energy that enters the ecosystem is made to go back in the environment as heat energy.