Biology Illinois Edition (Glencoe Science)
Biology Illinois Edition (Glencoe Science)
7th Edition
ISBN: 9780078759864
Author: Alton Biggs
Publisher: MCG
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Human Evolution
Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the mos…
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Chapter 24, Problem 15A
Summary Introduction

Introduction:

A tree diagram which shows evolutionary links among different species is termed as an Evolutionary Tree. This reflects the way of how the species have evolved from a series of common ancestors

Expert Solution & Answer
Check Mark

Answer to Problem 15A

Correct answer:

The correct answer is option (A) an earthworm and a snail.

Explanation of Solution

Explanation/justification for the correct answer:

Option ( A) an earthworm and a snail.

According to the evolutionary tree,an earthworm is closely related to snail because an earthworm belongs to phylum Annelida and Snail belongs to phylum mollusks.. So, this answer is correct.

Explanation for incorrect answer:

Option (B) a flatworm and an earthworm

According to the evolutionary tree, a flatworm belongs to phylum Platyhelminthes an earthworm belongs to phylum Annelida. So, this is an incorrect answer.

Option (C) a roundworm and an earthworm

According to the evolutionary tree, a roundworm belongs to phylum Nematoda an earthworm belongs to phylum Annelida. So, this is an incorrect answer.

Option (D) an earthworm and sea star.

According to the evolutionary tree, an earthworm belongs to phylum Annelida and Sea star belong to phylum Echinoderm. So, this is an incorrect answer.

Conclusion

According to the evolutionary tree,an earthworm is closely related to snail. Hence, the correct answer is option (A) genes.

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Chapter 24, Problem 14A
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Chapter 24, Problem 16A

Chapter 24 Solutions

Biology Illinois Edition (Glencoe Science)

Ch. 24 - Prob. 1ACh. 24 - Prob. 2ACh. 24 - Prob. 3ACh. 24 - Prob. 4ACh. 24 - Prob. 5ACh. 24 - Prob. 6ACh. 24 - Prob. 7ACh. 24 - Prob. 8ACh. 24 - Prob. 9ACh. 24 - Prob. 10A
Ch. 24 - Prob. 11ACh. 24 - Prob. 12ACh. 24 - Prob. 13ACh. 24 - Prob. 14ACh. 24 - Prob. 15ACh. 24 - Prob. 16ACh. 24 - Prob. 17ACh. 24 - Prob. 18ACh. 24 - Prob. 19ACh. 24 - Prob. 20ACh. 24 - Prob. 23ACh. 24 - Prob. 24ACh. 24 - Prob. 25ACh. 24 - Prob. 26ACh. 24 - Prob. 27ACh. 24 - Prob. 28ACh. 24 - Prob. 29ACh. 24 - Prob. 30ACh. 24 - Prob. 31ACh. 24 - Prob. 32ACh. 24 - Prob. 34ACh. 24 - Prob. 35ACh. 24 - Prob. 37ACh. 24 - Prob. 38ACh. 24 - Prob. 39ACh. 24 - Prob. 40ACh. 24 - Prob. 1STPCh. 24 - Prob. 2STPCh. 24 - Prob. 3STPCh. 24 - Prob. 4STPCh. 24 - Prob. 5STPCh. 24 - Prob. 6STPCh. 24 - Prob. 7STPCh. 24 - Prob. 8STPCh. 24 - Prob. 9STPCh. 24 - Prob. 10STPCh. 24 - Prob. 11STPCh. 24 - Prob. 12STPCh. 24 - Prob. 13STPCh. 24 - Prob. 14STPCh. 24 - Prob. 15STPCh. 24 - Prob. 16STPCh. 24 - Prob. 17STPCh. 24 - Prob. 18STP

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