Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 36.1, Problem 1R
Summary Introduction
To review:
The conditions that would help in breaking seed dormancy of species by fire.
Introduction:
A dormant seed refers to those seeds, which are unable to germinate in the given period of time under a combination of environmental facets, which are normally suitable for the process of germination of the seed. It is basically the mechanism, which helps in preventing the germination of the seed during the unsuitable conditions, which are when the probability of the seedling survival is minimal.
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Chapter 36 Solutions
Life: The Science of Biology
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- Explain how a wind-dispersed seed would be different from an animal-dispersed seed.arrow_forwardExplain the process of secondary growth in the stems of woody angiospermswith the help of schematic diagrams. What is its significance?arrow_forwardImagine that you are a member of a research group conducting research on fruit type and seed dispersal. Your group has submitted a paper to a peer-reviewed journal that addresses the factors that impact fruit type and seed dispersal mechanisms in plants of Central America. The editor of the journal communicates that your paper may be published if you make ‘minor revisions’ to the document.Unit 8 DQ Question: Why is seed dispersal important in the life of plants? What would be the consequences of having seeds that simply fell to the ground underneath the parent tree? (Editor’s note: addressing this question will provide needed background information to the ‘Introduction’ of your paper).arrow_forward
- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardWhich of the following statements is false? a. Auxin and gibberellin promote stem elongation b. Cytokinin promotes cell division in shoot tips c. Abscisic acid promotes water loss and dormancy d. Ethylene promotes fruit ripening and abscission.arrow_forwardName four major ways human societies rely on seed plants.arrow_forward
- The three main parts of a typical mature eudicot seed are the _______ . a. pollen grain, egg, and seed coat b. embryo, endosperm, and seed coat c. megaspores, microspores, and ovule d. embryo, cotyledons, and seed coatarrow_forwardIn an angiosperm life cycle, sexual reproduction includes: meiosis within the male gametophyte to produce sperm. meiosis within the female gametophyte to produce eggs. meiosis within the ovary to produce megaspores. fertilization leading to development of microspores. fertilization leading to development of megaspores.arrow_forwardIf there is a steep decline in the population of the major pollinators in an area, which of the following angiosperms would be most directly affected: aspen trees, pear trees, or dandelion plants? Why?arrow_forward
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