The very first plants to create seeds looked very much likeA.) quillworts. B.) pines. C.) horsetails. D.) mosses. E.) ferns
Which that the adhering to structures or features is/are a component of pine tree needles (leaves)?A.) a hypodermis B.) resin canals C.) a thick cuticle D.) sunken stomata E.) every one of these are correct.

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Which the the complying with is NOT connected with conifers?A.) albuminous cell B.) hypodermis C.) resin canals D.) soft lumber E.) vessel elements and also fibers
Meiosis wake up in pines in the microsporangia and in theA.) pollen grains. B.) egg. C.) micropyle. D.) nucellus. E.) arising ovule.
In pines a pollen grain reaches the nucellus via theA.) megasporangium. B.) pollen tube. C.) embryo. D.) archegonium. E.) micropyle.
After fertilization the integument the gymnosperms becomesA.) an embryo. B.) nutritive tissue. C.) a particle coat. D.) a fruit. E.) an ovule.
The details cells of pines that develop into pollen grains areA.) sperms. B.) eggs. C.) nucellus cells. D.) microspores. E.) megaspores.
Two of the original four cells in a pine pollen grain enter a pollen tube; one of these two, i beg your pardon after department eventually gives rise come sperms, is theA.) generative cell. B.) spermatogenous cell. C.) nucellar cell. D.) sterile cell. E.) pipe cell.
This is the largest team of living gymnosperms, comprising around 50 genera and 550 species.A.) conifers B.) gnetophytes C) ginkgos D.) cycads E.) no one of these answers room correct.
The phylum Ginkgophyta is stood for by ________ life species.A.) roughly 90, primarily in the tropics B.) three genera and also 30 C.) one D.) zero E.) around 100, mostly north that the equator
The hatchet gymnosperm advert toA.) plants whose seed are created out in the open up (as opposed to being enclosed within a structure).B.) plants whose sperms must migrate throughlooped tubes to reach the eggs.C.) plants through exceptionally energetic sperms. D.) plants whose seeds space enclosed in ~ woody layers. E.) every plants that perform not develop flowers.
Which of the complying with is usual to both cycads and pines?A.) male and also female strobili created on different plants B.) both megaspores and microspores developed C.) leaf form and dimension D.) flagella current on the sperms E.) no one of this answers space correct.
Most gymnosperms are wind pollinated. The exception is the ________, whereby pollen is moved from microsporangiate strobili come megasporangiate strobili by beetles.A.) cycads B.) share firs C.) juniper D.) pines E.) redwood
Which the the adhering to groups of gymnosperms have actually vessels in your wood?A.) Ginkgoes (Division Ginkgophyta) B.) Cycads (Division Cycadophyta) C.)conifers (Division Coniferophyta) D.) gnetophytes (Division Gnetophyta) E.) every one of these answers room correct.
Vascular plants encompass both seed-producing and also seedless groups. I m sorry of the complying with represents a far-reaching adaptive benefit for seed-producing plants?A.)ability to survive excessive drought B.) capability to continue to be dormant C.) a it is provided of food D.) a protective seed coat surrounding the embryo E.) every one of these options are correct.
Pine timber is claimed to be soft because of the lack ofA.) collenchyma. B.) xylem vessels. C.) knots. D.) silica. E.) a hypodermis.
A strobilus (pl. Strobili) is ________.A.) an asexual reproductive framework B.) part of the gymnosperm gametophyte C.) discovered in flowering plants D.) compact, spirally-arranged group of sporophylls E.)found in liverworts
A tires seed is composed of the seeds coat, nutritive tissue, and ________.A.) fruit B.) pollen grain C.) embryo D.) integument E.) all of these options are correct.

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Which of the complying with is not a phylum of gymnosperms?A.) Ginkgophyta B.) Polypodiophyta C.) Gnetophyta D.) Pinophyta E.) Cycadophyta
In the life bicycle of a typical conifer (e.g., a pine)A.) pollen is created in woody cones. B.) there are two integuments neighboring the embryo sac. C.) seed are created in woody cones. D.) the pollen tube grows down with the style to with the archegonium.E.) pollen is created in inconspicuous flowers.
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