"Hys seeds" Essays and Research Papers

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    sporangium. Nature had to evolve protection for the gametophytes‚ and it came up with an embryo inside the ovary‚ carpel‚ or pistil. The seed also evolved a hardened protective covering to aid in reproduction. Seed became carried in fruits‚ which were eaten by animals that dispersed the seeds and aided in reproduction. In addition‚ seed dormancy allows the seed to remain latent for extended periods of time. Lastly‚ the evolution of internal fertilization using the pollen tube and endosperm helped

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    plant seeds 1- plastic Tupperware container 80 grams- soil 120 grams- clay 1- pipette Water 1- ruler 1- plastic bag Light source The experiment was conducted using the following steps: 1. Weigh eighty grams of clay and one hundred and twenty grams of soil and mix together in container 2. Dig two evenly spaced out holes in the clay/soil mixture 3. Place one seed in each of the holes 4. Push the clay/soil mixture to cover the seeds 5. Put two drops of water on each buried seed 6. Place

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    Notes on the Plant Kingdom

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    Coniferophyta (gymnosperm) * “Naked seed” Greek * Refers to ovules not being surrounded by an ovary wall. * Therefore‚ necessity of cones * Seeds are non-motile and need wind for transport * Vascular * Cycad‚ ginkgo‚ pine * Angiospermophyta * Most successful plants today * Vascular * Seeds coated w/ ovary wall surrounding ovule * Sexual reproduction via flower formation‚ then seeds within fruit * Includes woody and herbaceous

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    Beaks of Finches

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    that will serve to model finch “beaks” and compete with other “finch” species to see which “beak” best adapted for obtaining specific food. Materials: 1 small plastic dish or cup‚ 1 large non-breakable dish‚ 1 tool to serve as a “beak”‚ large seed‚ small seed‚ 2 pairs safety goggles Procedure: See Lab # The Beaks of Finches given by Mrs. Trimble Data: See attachments Results: In this Lab‚ I learned that you need to be fast and particular with your movements to survive against other “finches

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    incorporate important traits in future breeding programmes of peanut in Pakistan. Key words: Arachis hypogea‚ de-embryonated cotyledons‚ BAP‚ NAA‚ in vitro regeneration‚ Pakistan. INTRODUCTION The oil seed crop Arachis hypogea L. (groundnut/peanut) belongs to family the leguminosae and sub family Papillionacea. The seed containing 50% oil and 25 to 30% proteins can be used as meal for food and feed (Ahmad and Rahim‚ 2007). In Pakistan‚ about 85% of total groundnut is grown in Potowar tract of Punjab‚ 13% in

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    Several studies show that music possesses properties that affect the growth rate of plants in different ways. These properties may be the wavelength of the music‚ its frequency or even its tempo. According to a study conducted by Margaret E. Collins and John E. K. Foreman‚ entitled The Effect of Sound on the growth rate of plants (2001)‚ plants growth is directly affected by sounds of varying frequencies. They observed that when plants are exposed to pure tones‚ it affects the growth of the plant

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    Radish Competition Lab

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    and wheat seeds affect the plants growth rate and competition. The competition occurs when resources are limited to the plants. The two types of competitions that occur are interspecific and intraspecific. Interspecific is a competition between two different species and intraspecific is a competition between the plants own species. This experiment was conducted by taking 6 pots containing soil and placing certain amount of seeds‚ radish or/and wheat seeds‚ in each pot. A total of 384 seeds were needed

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    Terminator Technology

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    gene" redirects here. For DNA transcription terminators‚ see Terminator (genetics). Genetic use restriction technology (GURT)‚ colloquially known as terminator technology or suicide seeds‚ is the name given to proposed methods for restricting the use of genetically modified plants by causing second generation seeds to be sterile. The technology was developed under a cooperative research and development agreement between the Agricultural Research Service of the United States Department of Agriculture

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    Dichotmous Lab Report

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    Wrinkled pea seeds Fig 5. Mung bean seeds Fig 6. Sweet Corn seeds Fig7. Wheat Seeds Fig8. Soy bean seeds Discussion Our group was successful in creating dichotomous keys in part A and part B. In part A‚ the dichotomous key will lead any two users to identify the same smiley faces. The dichotomous key of the seeds were to be much more difficult in classifying and separating than the smiley faces because the seeds did not have

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    conducted to test the above mentioned hypothesis by using the materials such as two pots‚ soil‚ mustard seeds‚ heliotropic chamber or card board box with a hole on one side‚ and water. Procedure of the experiment: Two pots are prepared by filling them with soil‚ and are labelled as A and B. A few (2-3) mustard seeds are sown in each of them. The conditions necessary for germination of seeds such as oxygen‚ moisture (water)‚ and optimum temperature are provided in order to allow them to germinate

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