Which of the following is true of conifers? was asked on May 31 2017. View the answer now.The correct answer would be "The female cone releases its seeds and new sporophytes grow". Conifers are sporophytes with two types of cones; pollen cones and ovulate cone. The pollen cones are smaller in size and produce microspores which would develop into the pollen grains.60. Which of the following is a logical conclusion from the data for the two plots? (A) The removal of the hardwood trees has not affected the numbers of conifers growing in the plots. (B) The frequency of young white pines in the plots is not significantly influenced by the removal of the deciduous trees.Which of the following is true of conifers? Most coniferous trees have both male and female cones. Female cones produce pollen that fertilizes the egg. Female cones produce pollen that is trapped...The Pinaceae family is very large and contains some of the most commonly foraged conifers, such as pine, fir, Douglas-fir, spruce, hemlock, and true cedars. Pine Tree Identification Pine trees ( Pinus spp.) have needles that are bundled in clusters of 1-7, with 2-5 being most common, depending on the species.
Which of the following is true of fertilization in
Which of the following is true of conifers? Female cones produce pollen that fertilizes the egg. Most coniferous trees have both male and female cones. Male cones cannot produce pollen unless fertilized by the female cone.User: Which of the following is a bryophyte?A. fern B. conifer C. moss D. liverwort Weegy: Liverworth is a bryophyte. monajane|Points 0| User: Which of the following plants is a pteridophyte?A. fern B. moss C. pine tree D. rose bush Weegy: FERN plants is a pteridophyte. User: Due to natural selection, which type of seed is MOST adapted to hot regions with low precipitation?Gymnosperms, conifers, angiosperms or horse tails? Angiosperms. Which of the following is not true of mosses, liverworts, and hornwarts? They have true roots, stems, and leaves. Which of the following is not a characteristic of a dicot? Floral parts often in multiples of three.Conifers fall under the category of Gymnosperms which reproduce through seeds but the seeds are exposed and are not enclosed in fruits and do not bloom into flowers. In the conifers, the naked seeds are present in the cones. The sporophyte phase of the conifers is the trees or the shrubs that they grow on.
Which of the following is true about individual 2 A She is
A cone (in formal botanical usage: strobilus, plural strobili) is an organ on plants in the division Pinophyta that contains the reproductive structures. The familiar woody cone is the female cone, which produces seeds.The male cones, which produce pollen, are usually herbaceous and much less conspicuous even at full maturity. The name "cone" derives from the fact that the shape in someAll extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews.Use the following information to answer the question(s) below. The Brazil nut tree, Bertholletia excels(n= 17), is native to tropical rain forests of South America.It is a hardwood tree that can grow to over 50 meters tall, is a source of high-quality lumber, and is a favorite nesting site for harpy eagles.Five different species of warblers, seed-eating birds, live in the same species of conifer trees. All of the birds migrate to coniferous forests during the summer, and different species reside in different areas in the same tree. They feed on the seeds of the conifer trees, but the different species do not mate with each other.Which of the following is true of fertilization in conifers? was asked on May 31 2017. View the answer now. Which of the following is true of fertilization in conifers? a . The female cone releases its seeds and new gametophytes grow. b. The male cone releases its seeds and new gametophytes grow.
A) The sporophytes develop immediately from the gametophyte.
B) The gametophytes grow without delay from the sporophyte.
C) The spores unencumber from the male cones.
D) The spores unlock from the gametophyte.
E) Female cones produce pollen that fertilizes the egg.
F) Most coniferous bushes have each female and male cones.
G) Male cones can't produce pollen except fertilized through the female cone.
H) Female cones produce pollen that is trapped via the male cones' scales
The proper answer is B and h: The gametophytes develop immediately from the sporophyte and Female cones produce pollen that is trapped by means of the male cones' scales.
What are conifers?
Conifers fall under the class of Gymnosperms which reproduce through seeds but the seeds are uncovered and don't seem to be enclosed in end result and don't bloom into plants. In the conifers, the naked seeds are present in the cones.
The sporophyte section of the conifers is the bushes or the shrubs that they grow on. The male and the feminine gametophytes fuse with each different to form the zygote which develops into a seed.
When the time is right, the seeds are dispersed into the wind and they develop into new vegetation which are the sporophytes.
Thus, it is somewhat obtrusive that the sporophytes grow immediately from the gametophytes in the conifers. The conifers wouldn't have spores and the gametophytes don't develop from the sporophytes.
The Life Cycle of Conifers
Conifers belong to the botanical magnificence gymnosperms that reproduce through seeds however the seeds remain naked and do not bloom into flora. The seeds in conjunction with the last reproductive organs are present within the cones.
Most of the conifers are monoecious which signifies that the male and female cones are provide on the same plant. Thus, each the female and male sporophylls are present on the similar mature sporophyte which is the tree.
The male cones or the microstobili are smaller in size and include the microsporocytes which divide via the process of meiosis and produce the male gametophytes.
The feminine cones or the megastrobili are higher and more advanced and form the megasporocytes that produce the feminine gametophytes.
The male and the female gametophytes spend nearly their complete life within the spore wall and derive vitamin from the sporophyte. The male gametophyte is enclosed within the walls of the pollen grains and are released in the wind at the time of fertilisation.
The female cone incorporates two ovules and one megasporocyte in every ovule. The megasporocyte undergoes meiosis to form 4 cells, of which only one survives and paperwork the feminine multicellular gametophyte.
The feminine gametophyte encloses an archegonium that comprises the mature egg. At the time of fertilisation, the pollen grains penetrate into the eggs via pollen tubes and the female and male gametes fuse to shape the zygote.
The zygote develops into the seeds which are later dispersed and lead to the enlargement of the new conifers. The process of fertilisation and development of the seed is an extended procedure in conifers and would possibly take as much as two years after pollination.
The Sporophyte Phase of ConifersThe sporophyte segment is the asexual, spore bearing segment and comprises diploid cells. This means that the cells have two sets of chromosomes. It is the zygote or the fertilised mobile that ends up in the formation of sporophyte.
The sporophyte segment bureaucracy haploid spores by means of the procedure of meiosis and it is known as sporophyte as it produces spores.
The sporophyte phase of conifers consists of the timber or the shrubs. These are the diploid multicellular bushes that give upward thrust to the haploid gametophytes. They have a existence span of a few thousand years.
The tree incorporates two copies of the genetic material, which are capable of producing spores. Their sporangia are discovered on the scale like buildings referred to as sporophylls which mix to shape the cones.
The cones are of two sorts, the male and the feminine cones. The feminine cones are greater with complicated structure and so they produce the female gametophyte in them. The male cones are smaller in size they usually shape the male gametophytes.
The Gametophyte Phase of ConifersThe gametophyte segment is the one in which gametes are produced. In this section, male and female gametes are formed which are haploid i.e. they have only one set of chromosomes in them.
Therefore, this is the sexual segment of the life cycle. The degree ends up in the formation of gametes, therefore the title gametophyte.
The gametophyte segment of the conifers is spent most commonly inside the partitions of the spores and they take all the nutrition from the sporophyte itself.
They are non photosynthetic in nature and carry out best the serve as of replica. The female gametophyte is never released while the male gametophyte is released for a little while all the way through the procedure of pollination.
The male cones contain the microsporangium which area the microspore. The microspores go through successive cell divisions to form a form celled pollen grain. The pollen grain accommodates the immature male gametophyte.
On the other hand, the feminine cones contain two ovules in line with scale. These ovules increase archegonium at the micropylar.
Each ovule comprises a megasporocyte that undergoes meiotic division to form four cells, of which only one survives to shape the female gametophyte. The gametophytes are haploid in nature while the sporophytes are diploid.
Therefore, after finding out the lifestyles cycle of the conifers, we will be able to conclude that the sporophytes in the conifers broaden without delay from gametophytes. The gametophytes fuse with each different to form the zygote which develops to shape the complete sporophyte.
References
The Editors of Encyclopaedia Britannica, Conifer Plant: Encyclopaedia Britannica. Characteristics of Gymnosperms, Boundless Biology: Lumen Learning. Life Cycle of a Conifer, Biology: Act for Libraries. T. Delevoryas, Gymnosperm Plant: Encyclopaedia Britannica. Life Cycle of Plants, Biology 102: Portland State University (March 1998).Garden Rescue & SOS - Garden Ninja Ltd Garden Design
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