The lack of seeds is a characteristic of all a. lycophytes. b. conifers. c. trachcophytcs. d. gnctophytcs.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 31, Problem 1U

The lack of seeds is a characteristic of all

a. lycophytes.

b. conifers.

c. trachcophytcs.

d. gnctophytcs.

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

1:42 PM ១ 99% Apart from food, plants need other nutrients like water and minerals. Nitrogen, a mineral, is an important part of all living cells. All organisms need nitrogen in order to grow and repair. Although nitrogen exists in its elemental form in the atmosphere, it cannot be directly used by plants. 7 Where else can plants obtain their nitrogen from? Plants make their own nitrogen. B Plants get it from animals. Plants get it from the soil. D Plants have special structures to break down atmospheric nitrogen. v3.7.63.140.4 | 6763e9417a3dbb80fa0f87b2 | Dec 19, 2024 | 3:07 PM | 84126 | en_8

Compare the cloning efficiencies: SmaI vs. EcoRI.

Hydrogen bonds play an important role in stabilizing and organizing biological macromolecules. Consider the four macromolecules discussed. Describe three examples where hydrogen bond formation affects the form or function of the macromolecule.

Answer 2

Textbook Question

Chapter 31, Problem 1U

The lack of seeds is a characteristic of all

a. lycophytes.

b. conifers.

c. trachcophytcs.

d. gnctophytcs.

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 31, Problem 1U

The lack of seeds is a characteristic of all

a. lycophytes.

b. conifers.

c. trachcophytcs.

d. gnctophytcs.

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 31, Problem 1U

The lack of seeds is a characteristic of all

a. lycophytes.

b. conifers.

c. trachcophytcs.

d. gnctophytcs.

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Some plants in the previous time do not have seeds but have vascular tissues and they showed dispersion by wind blowing. The ferns, whisks, horsetails all are seedless and do not have flowers.

Answer 12

Answer to Problem 1U

Correct answer:

The seeds are not present in lycophytes. Therefore, option a. is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

The lycophytes are the seedless plants but they have higher developed vascular systems which transport water and minerals. They do not reproduce through seeds, but they reproduce by spores. The dispersion of spores leads to reproduction in the seedless plants.

Option a. is given as “lycophytes”.

As, “The lack of seeds is a characteristic of all lycophytes”, is the right answer.

Hence, option a. is correct.

Reasons for the incorrect statements:

Option b. is given as “conifers”.

The largest gymnosperm phylum is the conifers which include pines, firs, and cedars and so on. The conifers have naked seeds. So, it is a wrong answer.

Option c. is given as “tracheophytes”.

The tracheophytes show two types of reproduction: by seeds and by spores. The tracheophytes also have well developed vascular system in seedless plants. So, it is a wrong answer.

Option d. is given as “gnetophytes”.

The gnetophytes are the gymnosperms and seeds of gnetophytes are most common because they are used in cooking and eating. So, it is a wrong answer.

Hence, options b., c., and d. are incorrect.

Answer 14

Conclusion

The conifers and gnetophytes both have seeds, tracheophytes may have seeds or spores but all the lycophytes are seedless.

Answer 15

Ch. 31 - The lack of seeds is a characteristic of all a....Ch. 31 - Prob. 2U Ch. 31 - Which of the following gymnosperms possesses a...Ch. 31 - In a pine tree, the microspores and megaspores are...Ch. 31 - Which of the following terms is NOT associated...Ch. 31 - Which of the following potentially represents the...Ch. 31 - Prob. 7U Ch. 31 - Prob. 8U Ch. 31 - The pericarp is the a. ovary wall. b. developing...Ch. 31 - Reproduction in angiospenns can occur more quickly...

The lack of seeds is a characteristic of all a. lycophytes. b. conifers. c. trachcophytcs. d. gnctophytcs.

Solution Summary: The author explains that lycophytes have higher developed vascular systems that transport water and minerals.

Videos

Answer to Problem 1U

Explanation of Solution

Want to see more full solutions like this?

Chapter 31 Solutions