The first plants were_________. a. ferns c. bryophytes b. flowering plants d. conifers

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 21, Problem 1SQ

The first plants were_________.

a. ferns	c. bryophytes
b. flowering plants	d. conifers

Expert Solution & Answer

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

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

What is the concept "calories consumed must equal calories burned" in regrads to nutrition?

You intend to insert patched dominant negative DNA into the left half of the neural tube of a chick. 1) Which side of the neural tube would you put the positive electrode to ensure that the DNA ends up on the left side? 2) What would be the internal (within the embryo) control for this experiment? 3) How can you be sure that the electroporation method itself is not impacting the embryo? 4) What would you do to ensure that the electroporation is working? How can you tell?

Describe a method to document the diffusion path and gradient of Sonic Hedgehog through the chicken embryo. If modifying the protein, what is one thing you have to consider in regards to maintaining the protein’s function?

Answer 2

Textbook Question

Chapter 21, Problem 1SQ

The first plants were_________.

a. ferns	c. bryophytes
b. flowering plants	d. conifers

Expert Solution & Answer

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

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 21, Problem 1SQ

The first plants were_________.

a. ferns	c. bryophytes
b. flowering plants	d. conifers

Expert Solution & Answer

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

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 21, Problem 1SQ

The first plants were_________.

a. ferns	c. bryophytes
b. flowering plants	d. conifers

Expert Solution & Answer

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

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:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Plants are eukaryotic, multicellular and photosynthetic organism on Earth. The plants evolved 450 million years ago from a group of freshwater alga. These contain chlorophyll, which helps in the process of photosynthesis.

Answer 12

Answer to Problem 1SQ

Correct answer:

The first plants were bryophytes. Hence, the correct answer is option c.

Answer 13

Explanation of Solution

Reason for correct answer:

Option c. is given as, “bryophytes.”

Bryophytes are called first plants because they are capable of surviving in water as well as on land. They are commonly known as nonvascular plants. Bryophytes are categorized into three lineages: liverworts, mosses, and hornworts. They have internal conducting vessels. They obtain nutrients from the surface. They have a better capability to survive in unfavorable conditions such as drought. The vascular plants such as ferns and conifers have evolved from bryophytes.

Reason for incorrect answer:

Option a. is given as, “ferns.”

Ferns are called seedless vascular plants. They release spores into the environment that develop into a gametophyte. Ferns have fronds (leaves) and a horizontal underground stem. Hence, option a. is incorrect.

Option b. is given as, “flowering plants.”

Angiosperms are called flowering plants because these are the only plants that can make flowers and fruits. These have leaves, sepals, and petals. These are considered as the most evolved group of plants. Hence, option b. is incorrect.

Option d. is given as, “conifers.”

Conifers are included in the class of gymnosperms. These include various species of shrubs and trees. These can tolerate drought conditions as well as cold conditions. Conifers generally have naked seeds. Hence, option d. is incorrect.

Hence, the options a., b., and d. are incorrect.

Answer 14

Conclusion

Bryophytes were characterized by vessels and flagellated sperms. They do not have seeds, leaves, and stem. It is the reason bryophytes are considered as first plants. Thus, the correct option is c.

Answer 15

Ch. 21 - The first plants were_________. a. ferns c....Ch. 21 - Prob. 2SQ Ch. 21 - In bryophytes, eggs are fertilized in a chamber on...Ch. 21 - Prob. 4SQ Ch. 21 - Prob. 5SQ Ch. 21 - Prob. 6SQ Ch. 21 - Prob. 7SQ Ch. 21 - Prob. 8SQ Ch. 21 - Only angiosperms produce_______. a. pollen c....Ch. 21 - Prob. 10SQ

The first plants were_________. a. ferns c. bryophytes b. flowering plants d. conifers

Videos

Answer to Problem 1SQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 21 Solutions