Homework Help is Here – Start Your Trial Now!
Science
Biology
pumila). Zamia pumila is the only cycad native to the United States. eb of anips ACTIVITY 1: Examine the live plant and/or cones if available. (Use the atlas if necessary.)

pumila). Zamia pumila is the only cycad native to the United States. eb of anips ACTIVITY 1: Examine the live plant and/or cones if available. (Use the atlas if necessary.)

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question
(rather than herbaceous) in that the xylem often displays secondary growth (widening of the trunk). They generally have only tracheids for water conduction and lack vessel elements, which are characteristic of angiosperms. Tyino I. Division: Cycadophyta Although there is only about 100 extant species of cycads, this phylum was significant during the Triassic period (248 million years ago). They are tropical and subtropical plants with trunk-like stems and compound leaves and are popular as ornamentals. These plants are dioecious in that seed cones and pollen cones are on two separate plants. Because of their palm-like structure, they are sometimes incorrectly described as palm trees. However, like other gymnosperms they produce cones and lack flowers. Examples of cycads include False king sago and Florida coontie (Zamia pumila). Zamia pumila is the only cycad native to the United States. ACTIVITY 1: Examine the live plant and/or cones if available. (Use the atlas if necessary.) olsmot bns el Lenel II. Division: Gnetophyta There are about 70 species of gnetophytes, which include tropical shrubs and vines. Some species (e.g. Ephedra, Welwitschia) are found in deserts and other dry regions. Gnetophytes are believed to be the most closely related to flowering plants. They possess more efficient bo water-conducting cells (vessel elements) in their xylem, which is typical of angiosperms, but lsm er absent in the other gymnosperms. The leaves of gnetophytes are also similar to that of angiosperms and some species have flower-like structures. Gnetopytes are classified as gymnosperms primarily because their reproductive structures are cones (strobili). 68
Transcribed Image Text:(rather than herbaceous) in that the xylem often displays secondary growth (widening of the trunk). They generally have only tracheids for water conduction and lack vessel elements, which are characteristic of angiosperms. Tyino I. Division: Cycadophyta Although there is only about 100 extant species of cycads, this phylum was significant during the Triassic period (248 million years ago). They are tropical and subtropical plants with trunk-like stems and compound leaves and are popular as ornamentals. These plants are dioecious in that seed cones and pollen cones are on two separate plants. Because of their palm-like structure, they are sometimes incorrectly described as palm trees. However, like other gymnosperms they produce cones and lack flowers. Examples of cycads include False king sago and Florida coontie (Zamia pumila). Zamia pumila is the only cycad native to the United States. ACTIVITY 1: Examine the live plant and/or cones if available. (Use the atlas if necessary.) olsmot bns el Lenel II. Division: Gnetophyta There are about 70 species of gnetophytes, which include tropical shrubs and vines. Some species (e.g. Ephedra, Welwitschia) are found in deserts and other dry regions. Gnetophytes are believed to be the most closely related to flowering plants. They possess more efficient bo water-conducting cells (vessel elements) in their xylem, which is typical of angiosperms, but lsm er absent in the other gymnosperms. The leaves of gnetophytes are also similar to that of angiosperms and some species have flower-like structures. Gnetopytes are classified as gymnosperms primarily because their reproductive structures are cones (strobili). 68
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS