Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 14, Problem 2ACQ
Figure 14.26 If a flower lacked a megasporangium, what type of gamete would it not be able to form? If it lacked a microsporangium, what type of gamete would not form?
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Chapter 14 Solutions
Concepts of Biology
Ch. 14 - Figure 14.19 At what stage does the diploid zygote...Ch. 14 - Figure 14.26 If a flower lacked a megasporangium,...Ch. 14 - The land plants are probably descendants of which...Ch. 14 - The event that leads from the haploid stage to the...Ch. 14 - Moss is an example of which type of plant? a....Ch. 14 - Why do mosses grow well in the Arctic tundra? a....Ch. 14 - Which is the most diverse group of seedless...Ch. 14 - Which group are vascular plants? a. liverworts b....Ch. 14 - Which of the following traits characterizes...Ch. 14 - What adaptation do seed plants have in addition to...
Ch. 14 - Pollen grains develop in which structure? a. the...Ch. 14 - Corn develops from a seedling with a single...Ch. 14 - What adaptations do plants have that allow them to...Ch. 14 - What are the three classes of bryophytes?Ch. 14 - How did the development of a vascular system...Ch. 14 - What are the four modern-day groups of...Ch. 14 - Cycads are considered endangered species and their...Ch. 14 - What are the two structures that allow angiosperms...
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- Figure 32.3 If the anther is missing, what type of reproductive structure will the flower be unable to produce? What term is used to describe a flower that is normally lacking the androecium? What term describes a flower lacking a gynoecium?arrow_forwardFigure 26.15 If a flower lacked a megasporangium, what type of gamete would not form? If the flower lacked a microsporangium, what type of gamete would not form?arrow_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
- In flowers,the structure that produce male and female gametophytes are called______and____arrow_forwardYou are studying a type of plant known as " rockcress" or Arabidopsis sp. You discover a mutant in which the central cell of the female gametophyte cannot be fertilized. What structure will not form in these mutant plants? Synergids Pollen tube Endosperm Egg cellarrow_forwardthe fruits of wild daisy has hair like structures called pappus What do these structures represent in the flower from which the fruit was derived?arrow_forward
- Most flowers contain both male and female reproductive structures, in contrast to the cones of gymnosperms, which are either male or female. Explain how bisexual flowers might be an advantageous evolutionaryadaptation to the flowering plants that possess them.arrow_forwardIn a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? ovary → style → stigma stigma → style → ovary ovary→ stigma→ style stigma→ ovary → stylearrow_forwardMost of the approximately 900 species of gymnosperms are conebearing plants. On the surfaces of their cone scales are ovules, which later become seeds. These ovules are said to be naked because they are not completely enclosed by diploid tissue (as the ovules of angiosperms are). This characteristic gives the gymnosperms their name; gymnos is a Greek word meaning naked, and sperma means seed. Botanists now divide the gymnosperms into four groups: conifers, cycads, ginkgos, and gnetophytes.arrow_forward
- Which statement below is correct regarding the formation of the endosperm in angiosperms? O the endosperm is formed from the female gametophyte and is haploid O a single sperm nucleus fertilizes the egg nucleus to become the diploid zygote O a sperm nucleus forms both the zygote and the endosperm through double fertilization O a second sperm nucleus fuses with the two polar nuclei of the egg sac МacВook Pro G Search or type URL @ 2# $ & * 2 3 4 6 8 W E R Yarrow_forwardThe sporophyte develops within the female gametophyte. Examine the mature sporophyte image. The sporophyte is attached to the gametophyte by a foot. Spores are produced by meiosis in a capsule located on a stalk that extends downward from the foot. The long green strands located among the spores are called elaters. The elaters assist in spore dispersal. Label the sporophytearrow_forwardWhich of the following is correct regarding female gametophyte development in Angiosperms? The female gametophyte develops in the anther The female gametophyte develops in an ovule within an ovary A female gametophyte develops from all four megaspores produced via meiosis All cells of the female gametophyte are haploidarrow_forward
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