BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Textbook Question
Chapter 30, Problem 2A
In double fertilization, one sperm produces a diploid ____, and the other produces a triploid ____.
a. zygote: primary endosperm
b. primary endosperm: microspore
c. antipodal: zygote
d. polar nuclei; zygote
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Which of the following statements regarding plants is false?a. Meiosis within anthers produces spores that develop intopollen.b. Meiosis within ovules produces spores that develop into anembryo sac.c. The male gametophyte is a pollen grain, and the femalegametophyte is an embryo sac.d. Meiosis directly produces sperm and egg cells in plants
All of the following are processes that occur during angiosperm reproductionEXCEPT
A. One megaspore degenerate, and the other three divides once to producethe six-celled embryo sac.B. The microspore mother cell undergoes meiosis to produce four haploidmicrospores.C. The megaspore mother cell undergoes meiosis to produce four haploidmegaspores.D. The generative cell forms two sperm cells via mitosis.Sel generatif membentuk dua sel sperma melalui mito
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Chapter 30 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 30.1 - List the evolutionary advantages of seeds.Ch. 30.1 - Distinguish between pollen and sperm in seed...Ch. 30.2 - Prob. 1LOCh. 30.2 - Prob. 2LOCh. 30.3 - Prob. 1LOCh. 30.3 - Prob. 2LOCh. 30.3 - Prob. 3LOCh. 30.4 - Describe four ways in which seeds help to ensure...Ch. 30.4 - List environmental conditions that can lead to...Ch. 30.5 - Prob. 1LO
Ch. 30.5 - Prob. 2LOCh. 30 - Using the graph in figure 30.13, calculate the...Ch. 30 - Prob. 1IQCh. 30 - Prob. 2IQCh. 30 - Prob. 3IQCh. 30 - Prob. 4IQCh. 30 - The lack of seeds is a characteristic of all a....Ch. 30 - Prob. 2UCh. 30 - Which of the following gymnosperms possesses a...Ch. 30 - In a pine tree, the microspores and megaspores are...Ch. 30 - Which of the following terms is NOT associated...Ch. 30 - Which of the following potentially represents the...Ch. 30 - Prob. 7UCh. 30 - Prob. 8UCh. 30 - The pericarp is the a. ovary wall. b. developing...Ch. 30 - Reproduction in angiospenns can occur more quickly...Ch. 30 - In double fertilization, one sperm produces a...Ch. 30 - Apply your understanding of angiosperms to...Ch. 30 - Comparing stems of two plant specimens under the...Ch. 30 - Prob. 5ACh. 30 - Fruits are complex organs that are specialized for...Ch. 30 - You haw been hired as a research assistant to...Ch. 30 - Prob. 2SCh. 30 - The relationship between flowering plants and...Ch. 30 - Prob. 4S
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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
- In plant life cycles, (a) the first products of meiosis are gametes (b) spores are part of the diploid sporophyte generation (c) the embryo gives rise to a zygote (d) the first stage in the diploid sporophyte generation is the zygote (e) the first stage in the haploid gametophyte generation is the prothallusarrow_forwardFigure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from the tree b. When the sperm nucleus and the egg nucleus fuse c. When the seeds drop from the tree d. When the pollen tube begins to growarrow_forwardIn 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_forward
- Caneberries (raspberries and blackberries) develop from... 1.single flower with many ovaries* 2. multiple flowers each with a single small ovary 3. one flower, with one ovary and many tiny 'fruitlets' 4. one flower with many ovaries that each have many small 'fruitlets'arrow_forwardIn flowers,the structure that produce male and female gametophytes are called______and____arrow_forwardWhich of the following lettered structures is the female gametophyte?arrow_forward
- The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes ? (a) 8 (b) 16 (c) 23 (d) 32arrow_forwardAnswer the following question: What is meant by “double fertilization”? What features of seeds and fruits have enabled angiosperms to become so widespread?arrow_forwardIn a flower after fertilization, the following tissues are diploid: a. carpel, integuments, and megaspore mother cell. b. carpel, integuments, and megaspore. c. carpel, megaspore, and zygote. d. carpel, megaspore mother cell, and endosperm.arrow_forward
- Which of the following pairs of plant structure has the haploid number ofchromosomes? A. Megaspore mother cell and antipodal cells B. Egg cell and antipodal cells C. Egg cell and endosperms D. Microspore mother cell and antipodal cellsarrow_forwardChoose the statement that is true.a. All flowers are pollinated by bees.b. Apple trees are propagated by grafting because they are triploid.c. Carpels function to attract pollinators.d. A coleoptile protects the plumule of eudicot seedlings.e. The arrival of pollen on a receptive seed is called pollination.f. In plants, sperm cells are male gametes.g. Nutrients in fruits nourish new seedlings.arrow_forward_______of the pollen grain divides to form two male gametes. (a) Vegetative cell (b) Generative cell (c) Microspore mother cell (d) None of thesearrow_forward
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