WHAT IS LIFE? A GUIDE TO BIO W/PHYSIO
20th Edition
ISBN: 9781319421670
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 14, Problem 3MC
Summary Introduction
Introduction:
Ferns are flowerless spore producing vascular plants having alternating sporophyte and gametophyte generations. The three major parts of fern are the rhizome, the fronds and the reproductive structures called sporangia. The rhizome is the stem of the fern plant.
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What is the meaning of the following structures in ferns and ferns allies?
In the life cycle of a bryophyte,
represent(s) the gametophyte (haploid) form and
represents the sporophyte (diploid) form.
A. microscopic gametes; a multicellular leafy structure
B. the multicellular foliose form; a smaller, temporary, dependent structure
C. a gemmae cup; the leafy permanent portion
D. a multicellular foliose form; a gemmae cup
E. a multicellular foliose form; a collection of spores or sori
One characteristic that separates ferns from complex vascular plants is that ferns do not havea. a vascular system.b. chloroplasts.c. alternation of generations in their life cycle.d. seeds.
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WHAT IS LIFE? A GUIDE TO BIO W/PHYSIO
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Nonearrow_forwardGametophytes develop into gametes and sporophytes develop into spores. True False In mosses and ferns, fertilization, and zygote and embryo formation occur in antheridia. True False Which of the following structures are in an archegonium of a moss? sterile jacket venter neck spermatogenous cells Ferns have roots and vascular tissues but mosses don't. True Falsearrow_forwardOne evident apomorphy evolved in vascular plants is the establishment of true leaves which is characterized by the incorporation of the vascular system. Select one: True False The calyptra in mosses generally function in the regulation of gas exchange and water uptake. Select one: True False Elaters are non-sporogenous cells with spiral wall thickenings and is mainly for spore dispersal of liverworts. Select one: O True Falsearrow_forward
- In mosses and ferns, fertilization, and zygote and embryo formation occur in antheridia. True False Sporopollenin makes spores resistant to dry environment and degradation. True False Which of the following structures are in an archegonium of a moss? sterile jacket venter neck spermatogenous cells Ferns have roots and vascular tissues but mosses don't. True Falsearrow_forwardThe sporophyte of nonvascular plants A. possesses anthers and archegonia O B. produces spores C. is the dominant stage of their alternation of generations D. produces non-motile sperm cells E. is dependent on wind pollinationarrow_forwardClassify what specific or what groups of plants (could be all groups if it is common) possess the following: 1. flower 2. rhizoids 2. sporophyll 3. sperm with flagella 4. ovules 5. archegonium 6. rhizoids 7. phloem 8. pollen 9. roots 10. sporangium 11. carpel 12. sori/sorus 13. cones 14. wood 15. antheridium 15. seed coat 16. root hairs 17. xylemarrow_forward
- Byrophytes are usually found in areas that are very wet or damp at least part of the year. Which of the following statements describes characteristics of byrophytes that make them dependent on water? State all that numbers that apply. 1. They have a dominant gametophyte phase. 2. They have swimming sperm that need water so they can swim to fertilize the eggs of other nearby plants. 3. They do not have lignin-stiffened vascular tissue or roots to effectively distribute water throughout the plant.arrow_forwardExplain the life cycle of a fern. Begin with the dominant portion of their life cycle and work your way through the rest including specific names of structures, types of cell division used, and nuclear conditions. Along with your explanation (paragraphs, bulleted points, etc.), I would like for you to discuss in a few sentences how this life cycle is more advanced than a typical moss’s life cycle and, in a few sentences, how it is not quite as advanced as a typical pine’s life cycle.arrow_forwardThe environments in which ferns grow range from standing water to very dry areas. Nonetheless, all ferns are dependent upon free water in order to complete their life cycles. Explain why is the case.arrow_forward
- The main difference between the life cycle of mosses versus the gymnosperms is: -in moss the dominant life cycle stage is the gametophyte, whereas in gymnosperms the dominant life cycle stage is the sporophyte. -moss sporophytes are photosynthetic and gymnosperm sporophytes are not. -gymnosperms undergo the alternation of generations and mosses do not. -mosses only have one multicellular life cycle stage, whereas gymnosperms have two.arrow_forwardREAD THE FOLLOWING INSTRUCTIONS: Bryophytes in which the gametophytes are "leafy" in appearance and the sporophytes grow conspicuously from the tips of the gametophyte plants. STEP 1: Examine the mass of moss plants and then select one or two individual gametophyte plants and note the leaf-like (not true leaves because they lack conducting tissue) structures which are arranged around a central, vertical "stem-like" stalk and root-like rhizoids which anchor the plant and absorb water and nutrients. STEP: The sex organs are in the tips of the plants and must be seen with the microscope. Study a slide of a vertical section through head of a mate plant and note the many antheridia. STEP 3: Examine a slide through a vertical section of a female plant. Note the many upright archegonia each on a tall stalk and each with a swollen base or venter containing an egg and an elongate neck. Note the filamentous paraphyses between the archegonia. STEP 4: Examine a living or preserved…arrow_forwardThe classification of the seed plants has varied. If a person groups all seed plants together in one large Division Spermatophyta, then they have two classes—the class with naked seeds and the class , plants with carpels. On the other hand, many people (and this book) use four divisions, not one. List the three divisions of “gymnosperms” and the one division of flowering plants.arrow_forward
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