Chapter Learning Objectives Chapter 30: Plant Diversity II: The Evolution of Seed Plants Concept 30.1: Seeds and pollen grains are key adaptations for life on land • Name five terrestrial adaptations that contributed to the success of seed plants. 1) Seed 2) Reduction of gametophyte generation (dominant is sporophyte) -tiny gametophytes can develop in sporangia of the parental sporophytes which protect them from UV and from drying out 3) Heterospory (mega and micro) -mega- female‚ part
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chloroplast and chlorophyll‚ which is the method for gaining nutrients and performing transpiration. Plants are also identified by their ability to carry out alternation of generations‚ which means that plants are capable of performing both mitosis and meiosis in order to reproduce sexually (http://en.wikipedia.org/wiki/Alternation_of_generations ). Another way to identify plants is if they are deciduous or evergreen‚ and what the leaf pattern looks like. Netted or parallel leaves can identify the type
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Leanne Butler 02-12-09 Anatomy and Physiology Introduction to the Human body Introduction The human body is such an interesting machine‚ the way it is structured and how it works is educational. There is so much to learn about the human body and up until today scientists are still under going medical research. There are a lot of questions people would like to know about how their body works. The report will include
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chromosome theory of inheritance. Explain the chromosomal basis of the laws of segregation and independent assortment -The chromosomal theory of inheritance states that genes are located on chromosomes and that the behavior of chromosomes during meiosis and fertilization accounts for inheritance patterns. Mendel’s chromosomal basis of the law of segregation occurs when the two alleles
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Units of language on different levels are studied by traditional branches of linguistics as phonetics (that deals with speech sounds and intonation)‚ lexicology (treats the words‚ their meaning and vocabulary structure)‚ grammar (analysis forms of words)‚ syntax (analysis the function of words in a sentence). These areas of study are more or less clear-cut. Some scholars claim that stylistic is a comparatively new branch of linguistics‚ The term stylistics really came into existence not too long
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1. Active Transport- the movement of substances across cell membranes from low to high concentrations‚ requiring energy and proteins that act as carriers 2. Adenosine triphosphate- chemical compound consiting of one molecule of adenine‚ one of ribose‚ and three of phosphoric acid 3. Anaphase- a late stage of cell division during which chromosomes move to the poles of the spindle 4. Benign-nonmaligment 5. Cell-basic unit of structure and function for all living things 6. Cell membrane-the membrane
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DIVISION RHODOPHYTA (RED ALGAE) RHODOPYTA (RED ALGAE) Red algae have been the 1st eukaryotes formed by endosymbiosis involving photosynthetic prokaryotes. Red algae are mostly multicellular It exhibit some of the most complex life cycles It posses cellulose walls‚ chlorophyll a‚ some posses chlorophyll d (chloroplast is present but lacks grana) Contains phycoerythrin‚ phycocyanin and allophycocyanin as accessory pigments. flagella is absent in red algae as well as centrioles 5‚000 species(approximate
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chose should the cloning be successful. The procedure was performed by taking a dog’s egg cell‚ removing the nucleus‚ and then replacing it with the deceased dog’s DNA. It is then electrically stimulated in order to trigger it to begin undergoing meiosis. Tarantola’s journey to get Double Trouble started when she was 18 and she got a lovable mutt she named Trouble. She was so enamored with her new puppy‚ she painted Trouble’s face on a wall in her house‚ printed his face on her pillows and on her
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Genetic engineering alters an organism’s DNA to introduce new‚ desirable traits. Many organisms‚ from bacteria to plants and animals‚ have been genetically modified for academic‚ medical‚ agricultural‚ and industrial purposes. While genetic engineering has certain benefits‚ ethical concerns surround altering people and our food supply. Scientists can intentionally modify an organism’s genome Genetic engineering is possible because the genetic code—the way DNA encodes information—and the structure
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is a genetic disorder that effects development in women‚ per TurnerSyndrome.Org. Women who have Turner Syndrome have one X Chromosome instead of two full X Chromosomes that most females are born with. One of the X chromosomes are “dropped” during Meiosis‚ when the sex cells divide to form eggs in females. It is not usually inherited. Turner Syndrome can affect the development of several body systems in those who have them. Turner Syndrome is believed to be a random error during the formation of eggs
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