Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Chapter 18, Problem 7FIB

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Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Answer 5

Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

Answer 6

Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

Answer 7

Chapter 18, Problem 7FIB

Summary Introduction

Introduction:

Nearly 475 million years ago, some of these algae gave rise to “multicellular land plants”. After land plants evolved, providing the potential source of food for other animals, animals emerged from the water (sea, ocean and so on). The first animals to move out of the water were arthropods. About 400 million years ago lobefins appeared and from them amphibians evolved.

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Ch. 18.1 - How Would the experiments result charge if oxygen...Ch. 18.1 - describe a likely scenario for the origin of life?Ch. 18.1 - describe, for each step in the scenario, some...Ch. 18.2 - Uranium-235, with a half-life of 713 million...Ch. 18.2 - Scientists have identified a free living bacterium...Ch. 18.2 - describe scenarios for the major evolutionary...Ch. 18.2 - State the order in which these events occurred,...Ch. 18.3 - describe fossil evidence of the earliest...Ch. 18.3 - describe the advantages that fostered the origin...Ch. 18.3 - Prob. 3CYL

Solution Summary: The author explains how amphibians gave rise to reptiles with three major adaptations to life: waterproof, shelled eggs, scaly, water resistant skin, and more efficient lungs.

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