Evolution Most botanists believe that the Pteridophytes also known as ferns are descendants of the Rhyniopsida, an extinct group of free-sporing plants which originated in the Silurian period (about 430 million years ago) and went extinct in the mid-Devonian period (about 370 million years ago). Physiology Ferns has no flowers, no seeds, and no fruits. A fern is defined as a cryptogam which means a plant that has no true flowers or seeds. With sporangia, a receptacle in which asexual spores are
2.2 Bracken fern (western bracken) Bracken fern (Pteridium aquiline var. pubescens) are deciduous and grow from brown to black woody rhizomes, forming large often dense patches. The leaves emerge from erect fronds and are pinnately compound, scattered, erect, coarse, narrowly or broadly triangular, to 2 m in height. Fronds (leaves) are pinnules (ultimate segments), entire in the apices of the pinnae, lobed toward the stalk. Reproduction is by spores produced in sporangia lining the under surface
Where the Red Fern Grows I cannot remember the first time I read Where the Red Fern Grows, by Wilson Rawls. I read it at about age ten, and I have lost count of how many times I read it since. It was a period in my life when childhood was nearly over, but adolescence had not yet set in, and it was a time when animals were my greatest love. Where the Red Fern Grows is a novel about a young boy and his two dogs, but to an animal-lover, it is much more. The story is told in the first
Where the Red Fern Grows Billy is coming home from work one day when suddenly he hears some dogs up the street fighting. He goes to check it out and finds them picking on a redbone hound. He saves the dog and cares for it through the night. It reminds him of his childhood. When Billy was ten years old he lived on a farm in the Ozark Mountains of northeastern Oklahoma. He wanted two good coonhounds very badly, he called it “puppy love”, but his papa could not afford to buy him the dogs. For many
In the story, Billy was walking home one day when there was a dog fight in the ally and he went to investigate to see what was going on and there was a bunch of dog’s beating up on one dog so he decided to get involved and break it up. They all scattered away when they saw him coming. The dog that was getting beat up and was lying on the ground and it was hurt. He went to the dog and saw it was a beautiful hound dog. He also noticed that the dog wasn’t hurt that bad, just scared. When Billy was a
and Actions of Fanny Fern Literature from the 1820âs to the 1860âs brought attention to the expanse of the American experience and gave rise to many unique voices. Some of the best writers of this era challenged their fellow citizens to live up to the ideals that the founding fathers had written into America's sacred documents. The voices that cast these challenges are as varied and wide spread in their approach as this nation's natural boundaries are diverse. Fanny Fern (1811-1872), was one
The effects of ammonium nitrate on c-fern spore germination Introduction: Organisms need their own set of nutrients. These nutrients are what help the cell survive so that the whole organism could survive. Organisms have their own set of nutrients. On earth there are three domains of life. These domains are the bacteria, Archaea, and eukarya (Brooker et al. 2013) most of the cells that are being researched and examined are cells in the domain Eukarya because cells in this domain usually exists
A Feminist Perspective of Fern Leaves from Fanny’s Portfolio Judith Fetterly describes the fiction of Fanny Fern as basically conservative due to the seeming resignation to the institution of marriage. She claims that Parton’s work is safe and makes only small challenges to the patriarchal institutions of her day. I do not see this in my reading of "Fern Leaves from Fanny’s Portfolio." I hear the voice of a woman who recognizes the problems with patriarchy and who does not flinch from revealing
Loss of Childhood in Thomas’ Fern Hill and Wordsworth’s Ode: Intimations of Immortality Through the use of nature and time, Dylan Thomas’s "Fern Hill" and William Wordsworth’s “Ode: Intimations of Immortality” both address the agonizing loss of childhood. While Wordsworth recognizes that wisdom and experience recompense this loss(Poetry Criticism 370), Thomas views "life after childhood as bondage"(Viswanathan 286). As “Fern Hill” progresses, Thomas’s attitude towards childhood changes from
poetry. In Thomas’ "Fern Hill" and Cummings’ "anyone lived in a pretty how town," both modern poets utilize a juxtaposition of paradoxes to express the irrevocable passage of time and the loss of innocence attributed to it. While Thomas projects his mature feelings into a nostalgic site of his childhood, Cummings takes a more detached approach by telling a seemingly trivial, paradoxical story of "noone" and "anyone," which through negation tells a universal life story. "Fern Hill" is a personal
Where the Red Fern grows A novel by Wilson Rawls named Where the Red Fern Grows is the story of a boy, his two hounds (which he named Old Dan and Little Ann), and all of the adventures they shared together. A loving threesome, they ranged the dark hills and river bottoms of the Cherokee country. Old Dan had the brawn, Little Ann had the brains, and Billy had the will to train them to be the finest hunting team in the valley. Glory and victory awaited them, but sadness waited
and Pterophytes are both plant divisions with a common ancestor, they have little in common. While Bryophytes (mosses) are generally nonvascular and very short in height, Pterophytes (ferns) are vascular plants that usually grow much taller than mosses. While the dominant generation in mosses is the gametophyte, ferns exhibit the sporophyte generation. The details of their alternations of generation vary as well, although both have diploid and haploid stages. Alteration of generations is defined as
Ferm Life Cycle Introduction: This essay will discuss the fern life cycle as taught in biology lab. The essay will cover the basic process which we used to grow a fern. I will discuss the methods and the results of the lab exercise. Finally, I will discuss the evidence of the methods and results that were obtained . Methods and Results: To begin our experiment we obtained a petri dish from our lab instructor which contained fern spores and the food they needed to survive. We then look at the
Charlotte’s Web by E.B. White Fern convinced her dad not to kill the runt pig and he gave it to her to take care of. She named him Wilbur. Wilbur was getting bigger and bigger and eating more and more. He had to be sold so Fern called her aunt and uncle the Zuckermans. The goose told Wilbur that there was a loose board in his pen. He escaped but he got tired, hungry and afraid. Uncle Homer lured him back to his pen with food. Wilbur had a terrible, horrible, no good, very bad day because
As plants evolved, moving from the sea to land, there were many adaptations that needed to occur to sustain the new mode of life. Adaptations addressed the major problems of how to prevent water loss, how to transport water, and how to reproduce in a newly dry environment (Lecture 4). Different organisms addressed these issues in a variety of ways, giving rise to anatomical differences in tissues and biochemical changes, which contributed to the rise in genetic variation of plant species. First
The functions of rhizoids are root-like structures that absorb water and transport materials to the plants. The position of the archegonium and antheridium relates to their reproductive function by having the archegonium located under the eggs so that when the antheridium sperm is dispersed, it can reach the egg better. Antheridium is upright so that the sperm can be dispersed on top and reach the archegonium egg to fertilize the plant. They are also located near each other so that when there is
Martinus de la Cruz, an Aztec Indian physician, illustrated the first epiphyte (an orchid) in the Badianus Manuscript in 1552. Trade around the world by the 1770's included many exotic and tropical plants with epiphytic species among them. Orchids, ferns and others were valued by decorators and collectors (Benzing 1990). Scientific interest did not keep pace with trade interest. The scientific study of epiphytes has not been extensive when compared to the study of plants with other specializations
society forty five years later. Fern is an eight year old girl who is full of energy. She spends most of her time taking care of a pig named Wilbur. Who would ever believe a little girl would demonstrate mothering abilities? E.B. White has even gone as far as to depict Wilbur as Fern's own child: "A minute later, Fern was seated on the floor in the comer of the kitchen with her infant between her knees, teaching it to suck from the bottle" (6-7). Not only does Fern mother a piglet as her own infant
Introduction Asexual propagation is the process through which reproduction without passage through the seed cycle occurs. The advantages of asexual propagation are that it preserves genetic makeup, propagates seedless plants, disease control, rapid production, the plants are identical, cheaper, faster and easier reducing or avoiding juvenility. The disadvantages of asexual propagation are that it increases disease and insect susceptibility, plants are bulky, and the mother plants could become contaminated
Creating a Garden for the Blind In creating a garden for the blind, the senses of smell, hearing and touch take on prominence. Even without sight, a person can enjoy a garden simply by feeling the symmetry of leaves, touching the bark of different trees and feeling for buds at the start of spring. Even though a visually disabled person cannot enjoy the vibrant colors of a rose garden, they can enjoy the strong scent from such flowers. Because the sense of sight is taking aback seat in this