Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 30, Problem 4U
In a pine tree, the microspores and megaspores are produced by the process of
a. fertilization.
b. mitosis.
c. fusion.
d. meiosis.
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Chapter 30 Solutions
Biology
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
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- In the alternation of generations in plants, the gametophyte is _______ and produces gametes by _______. a. haploid; mitosis c. haploid; meiosis b. diploid; mitosis d. diploid; meiosisarrow_forwardAlternation of generations describes which of the following? a. The haploid form can be multicellular; the diploid form is unicellular. b. The haploid form is unicellular; the diploid form can be multicellular. c. Both the haploid and diploid forms can be multicellular. d. Neither the haploid nor the diploid forms can be multicellular.arrow_forwardThe products of budding are a. two cells of equal size. b. two cells, one of which is smaller than the other. c. many cells of equal size. d. many cells of variable size.arrow_forward
- List the two types of haploid cells that are fertilized in a plant's double fertilization. What do they form in the seed? And how could a forest fire be beneficial to a seed.arrow_forwardWhich of the following IS found in basal land plants (Embryophyta), but NOT found in Chara?a. Multicellular gametangia with sterile jacket.b. Diploid mitosis.c. Photoautotrophous gametophyted. Haploid mitosis.e. Sperm cells with two flagellaarrow_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
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- In plant reproduction, fertilization occurs when the male and female sex cells form ______________. * Choose the right answer: a.) a clone b.) a sprout c.) a petal d.) a seedarrow_forwardHow is the life cycle of Ascomycetes different from that of humans? A. Haploid cells undergo meiosis. B. Haploid cells undergo mitosis. C. Diploid cells undergo meiosis. D. Diploid cells undergo mitosis.arrow_forwardIn a fertilized ovule, n, 2n and 3n conditions occur respectively in A. antipodal, zygote and endosperm B. zygote, nucellus and endosperm C. endosperm, nucellus and zygote. D. antipodals, synergids and integusmentsarrow_forward
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