In a conifer (Gymnosperm): O a. Trees in most species are either male or female (dioecious). O b. Wind disperses both the pollen and the seeds. O c. The seeds are enclosed in a fruit, produced by the ovary O d. Male cones are mnuch larger than female cones. Each cone on the tree has both male and female gametophytes. O e.

In a conifer (Gymnosperm): O a. Trees in most species are either male or female (dioecious). O b. Wind disperses both the pollen and the seeds. O c. The seeds are enclosed in a fruit, produced by the ovary O d. Male cones are mnuch larger than female cones. Each cone on the tree has both male and female gametophytes. O e.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter29: Seed Plants

Section: Chapter Questions

Problem 4TYK

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Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.
Which of the following statements is false? a. Ferns produce seeds inside sori. b. Conifers do not produce fruits. c. Both gymnosperms and angiosperms produce pollen. d. Only angiosperms produce flowers
Corn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely: a. a gymnosperm b. a monocot c. a eudicot d. a basal angiosperm
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 coat
Fruits do not form in gymnosperms becausea. in gymnosperms, the seed is surrounded by the ovule.b. in angiosperms, the ovary is surrounded by the ovule.c. in gymnosperms, the ovule is surrounded by the ovary.d. in angiosperms, the ovule is surrounded by the ovary.
A prothallus is: O a. Atype of gametophyte. O b. Found in the conifers for transporting the sperm. O c. Aprotective cover over the sporangia. O d. Aprotective cover found in cones, O e. Aflat sail that helps in wind dispersal of seeds.
A. Pollen tube B. C. Which part of this angiosperm egg will become the endosperm? D B E A с D. E.
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 Y
What separates the gymnosperms from other seed plants?a. a vascular systemb. wind dispersion of pollenc. ovules not completely covered by the sporophyte at the time of pollinationd. fruits and flowers
Vegetative propagation in liverworts is possible because of propagules known as gemmae. Select one: True False Where would you most likely find the megasporangium of an angiosperm? a. Within an ovule contained within an ovary of a flower b. In the style of a flower c. Enclosed in the stigma of a flower d. Packed into pollen sacs within the anthers found on a stamen Which of the following plant structures is NOT matched correctly to its function? a. Stomata allow gas transfer b. Tracheids allow the movement of water and minerals c. Cuticle prevents desiccation d. Plasmodesmata - form a supportive meshwork which acts as a cellular exoskeleton
Match the structure to its function in angiosperms.
Explain both