D (In ferns, the dominant generation is the diploid sporophyte the produces sporangia, website of meiosis that create haploid spores. The spores give rise to a haploid gametophyte, leaf-looking framework that does no contain vascular tissue, dubbed the thallus. On the thallus space antheridia, which produce sperm, and also the archegonium, which produce eggs; the sperm need water to swim come the archegonium and also fuse to develop a diploid zygote, which continues to be in the archegonium. The young sporophyte grows from the gametophyte and eventually provides rise come the maturation sporophyte. The maturation sporophyte is a vascular plant with true roots, leaves, and also stems)


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Which explain is not true around ferns?(A) The sporophyte stage is the dominant generation(B) Antheridia and archegonia construct on the prothallus of the gametophyte stage(C) Fertilization calls for moisture for the sperm come swim come the egg within the archegonia(D) The sporophyte lacks vascular tissue
B (In ferns, the leading generation is the diploid sporophyte that produces sporangia, often on the underside of leaves, which are sites of meiosis that develop haploid spores.)
Spores are produced in the _____ the a fern(A) seed(B) sporangium, often found on the underside that a leaf(C) ovary, often found on the underside the a leaf(D) flower
B (The carpel, or pistil, of a flower is made up of the stigma, style, and also the ovary that contains the ovule)
B (A seeds is a mature ovule comprise a sporophyte. The stigma is the sticky finish of a carpel wherein pollen is trapped and also the style is the tube the connects the stigma to the ovule.)
Botanically, a seeds is a structure arisen from a(n)(A) style(B) ovule(C) sepal(D) stigma(E) anther
D (An evolutionary trend checked out in plants is that the haploid gametophyte becomes lessened in size and also the diploid sporophyte has actually increased in size. Due to the fact that the sporophyte has end up being reduced in size, it deserve to be enclosed and also packaged together a seeds which deserve to then be disbursed.)
A significant evolutionary trend amongst plants is (A)a reduction in the dimension of the sporophyte and boost in the size of the gametophyte(B) a to decrease in the size of both the sporophyte and also the gametophyte(C) boost in the dimension of both the sporophyte and also the gametophyte(D) a reduction in the dimension of the gametophyte and boost in the size of the sporophyte
E (Since the sporophyte generation is diploid it have to undergo meiosis to create haploid spores. Mitosis would produce cells that have the same genetic component together the original)
Which the the following statements is no true about alternation that generations life cycle?(A) Meiosis to produce spores that space haploid(B) as soon as the sperm fertilizes the egg, a zygote outcomes that establishes into the sporophyte(C) Spores develop into the gametophyte generation(D) The gametophyte produces egg and sperm(E) The sporophyte generation produce gametes by mitosis in structures referred to as sporangia
D (With alternation the generations, plants cycle in between generations that space haploid and also give increase to gametes. This is called the gametophyte generation. A generation that is diploid and gives rise to spores after meiosis is dubbed the sporophyte generation. Both generations are multicellular, yet in mosses the gametophyte is larger. Together plants became adapted to land, the dimension of the gametophyte decreased and the size of the sporophyte raised until the gametophyte was small enough to be enclosed in a seed)
In the moss life cycle, the ____ generation is dominant(A) diploid antheridium(B) diploid gametophyte(C) diploid sporophyte(D) haploid gametophyte
D (The parts of a flower space the sepals that consist of the calyx and protect the flower bud. The petals often attract a certain pollinator based on color or shape. In addition to these parts, which do not take it direct component in reproduction, room the male and also female flower parts. The male components are the anther, wherein pollen is produced, and also filament, and also the female components are the stigma with a sticky end, the format that connects the stigma and ovule, and the ovule that consists of the ovary.)
The reproductive parts of an angiosperm are the (A) petals and sepals(B) petals and stamen(C) sepals and stamen(D) carpel and also stamen(E) sepals and carpel
Which of the adhering to is not characteristic the a fern?(A) fern sporophyte is vascular(B) ferns are quite small since they lack vascular tissue(C) fern sporophyte leaves an initial appear in a curled-up kind termed a fiddlehead(D) fern sporophyte is the leading generation in the fern life cycle
D (Ferns, pine trees, redwood trees, and grass are all vascular plants. Mosses room nonvascular plants; they carry out not have true leaves, true roots, or stems.)
Which that the following is a nonvascular plant that has the longest evolutionary background on land?(A) bristlecone pine tree(B) ferns(C) redwood tree(D) moss
E (Plants undergo a cycle dubbed alternation of generations that alternating between multicellular haploid and diploid organisms. The haploid generation is dubbed the gametophyte and also produces gametes; the gametes fuse and also give increase to a diploid generation dubbed the sporophyte. The sporophyte has structures that undergo meiosis and produces spores that space haploid and also give climb to the sporophyte generation.)
Which succession is exactly in the life bike of alternation of generations?(A) gametophyte - gametes - spores - sporophyte(B) gametophyte - gametes - zygote - spores - sporophyte(C) gametophyte - spores - sporophyte(D) gametophyte - spores - gametes - zygote - sporophyte(E) gametophyte - gametes - zygote - sporophyte - spores
E (The sticky stigma would trap pollen that landed there and a pollen pipe would flourish from the pollen grain down to the egg in the ovule, fertilizing the egg.)
During pollination in angiosperms, pollen grains will certainly stick come the enlarged knob in the facility of the flower dubbed the(A) ovule(B) ovary(C) style(D) anther(E) stigma
A (The carpel, or pistil, of a flower is consisted of of the stigma, style, and the ovary that includes the ovule.)
C (On the thallus that the gametophyte room antheridia, which develop sperm, and also the archegonium, which produce eggs. Sperm swim come the archegonium and also fuse to create a diploid zygote, which stays in the archegonium. The young sporophyte (embryo) grows from the gametophyte and also eventually gives rise to the tires sporophyte)
In the life bike of a fern, the zygote (A) is haploid(B) becomes the gametophyte generation(C) i do not care the sporophyte generation(D) experience meiosis(E) does no occur
D (With alternation that generations, plants cycle in between generations that room haploid and give climb to gametes. This is called the gametophyte generation. A generation the is diploid and also gives rise to spores after ~ meiosis is referred to as the sporophyte generation. This bicycle is uncovered in all plants and only varies regarding which generation is larger. Irpari plant through no true roots)
Which life cycle phase is diploid in moss?(A) spores(B) gametophyte generation(C) gametes(D) sporophyte generation
represents the diploid (2n) generation; produces spores through meiosis, a haploid reproductive structure
represents the haploid (n) generation; produce gametes by mitosis, sperm and egg fuse, forming diploid zygote
the liverworts, hornworts, and also mosses; very first plants to colonize the floor - nonvascular; only land plant in which the gametophyte is dominant; flagellated sperm
no vascular tissue and no seeds, small, live mostly in moist areas, gametophyte generation is dominant, flagellated sperm swim to egg, sporophyte relies entirely on parent plant, spores released from capsule flourish into new gametophyte
have true roots, stems, and also leaves; sporophyte is dominant generation; two teams = lycophytes, ferns and their allies; seedless produce windblown spores
club mosses; amont first land plants with vascular tissue; well-developed roots, stems and also leaves; sends out up upright stems, tiny leaves called microphylls with single vein, sporangia born ~ above terminal swarm of leaves
leaves dubbed fronds, sporophyte dominate, fronds flourish from horizontal stem-rhizome, fronds often compound - v leaflets, spores often found on bottom of fronds, fronds room megaphylls, fiddle heads often edible
"naked seeds"; many are cone-bearing; ovules (later come to be seeds) situated on surfaces of your cone scales, no enclosing tissue about seeds; confiers and also gingkoes
best recognized gymnosperms; pine, spruce, fir, cedar, hemlock, redwood, and cypress; adjusted to cold, dry weather together as northern temperate regions, needle-like pipeline conserve water with thick cuticle, dominant sporophyte produce pollen cones and also seed cones, timber for in building and construction paper
female trees develop fleshy seeds that give off foul oder, male trees preferred for ornamental planting, resistant come pollution, perform well in urban environments
modified leaves, might be colorful, diverse in size, shape, and also color; attractive a specific pollinator
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