INTEGUMENTS Protozoa- delicate cell membrane (Amoeba) Coelenterata- epidermis‚ single layer of cells (e.g. corals and Hydra) Annelida- epidermis contains non-cellular cuticle (e.g. earthworm) Platyhelminthes- epidermis contain contains resistant cuticle (e.g. liver fluke and tape worm.) Arthropoda- chitin (e.g. shrimp‚ crabs‚ lobster and insects) Mollusca- shell (clams‚ mussels and oysters) VERTEBRATE INTEGUMENTS I. EPIDERMIS - outer‚ thinner but stratified layer of the skin - Ectodermal
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Osmosis The purpose of this lab is to study how membranes of plant and animal cells react when exposed to different solutions. The first experiment involves purple onion skin and the second involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.
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very unique as normally when you think of the word ‘Valentine’ you imagine‚ roses‚ chocolates‚ cards and kisses whereas in this poem the persona tells a story in which she gives her lover an onion on Valentines Day. The comparison of an onion and her love is unusual but very legit as different aspects of an onion like the way a person cries when one is cut is very similar to how you can shed tears when you are in love. ‘How do I love thee? Let me count the ways’ is the title of the poem by Elizabeth
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Ann Duffy says that she will give an onion to whom she loves. Why onion? It is because an onion represents both sides of love. Love has many layers like an onion. You may waste your time for many people who are not the right one for you and will face many problems and barriers that you and your love have to fight for love before you will find “true love.” Along this way‚ sometimes you will be sad and cry many times like an onion when you peel it because an onion can make your tears. In contrast‚ you
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universal idea of love and projects the dual nature of its essence. She rejects the gifts conventionally associated with Valentine’s Day‚ such as ‘red-rose’‚ ‘satin cloth’‚ ‘cute card’‚ ‘kissogram’ and brings a Copernican revolution with the option of “Onion” as a gift which acts as an extended metaphor throughout the poem. Insofar as the techniques are concerned‚ the poetess employs imagery‚ symbolism‚ word choice and structure so as to entrench in the mind of the reader that “Valentine” is an unusual
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it usually takes several years before this damage leads to health problems such as melanoma (1). The skin is made up of three layers which are the epidermis‚ the outer layer of skin‚ the dermis‚ which is the middle layer of skin‚ and the hypodermis‚ which is the deeper layer of skin which is also made up of fat. Melanocytes are located in the epidermis and produce pigment. Melanoma forms a tumor when melanocytes change and grow rapidly (8). It
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appropriate medium with L. acidophilus and S. epidemidis using aseptic techniques. Refer to pages 91-93 of the lab manual for step-by-step instructions. The MRS broth will be inoculated with L. acidophilus and the nutrient broth will be inoculated with S. epidermis. The final step is to observe the microbial growth and record observations. Check the samples in the incubator at 24 hours. If you do
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Stomata are tiny pores found on the epidermis of the leaf‚ surrounded by guard cells. [1] Their main function is gas exchange [1] for photosynthesis and respiration. The development of stomata on the leaves of a plant is determined by interaction between different genes and environmental factors. A few studies have been conducted in order to establish a relationship between stomatal densities and given environmental factors. Research has shown that stomatal densities are controlled by environmental
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With nearly 3‚800 species‚ lizards are a widespread group of squamate reptiles. Some of these creatures are capable of autotomy‚ which allows them to detach their tail and later regenerate a new one. This is most commonly used as a predator defense mechanism. The African house gecko‚ Hemidactylus Mabouia‚ is one of the limited species of reptiles that are able to reproduce a lost limb. Autotomy and tail regeneration can be broken down to several steps‚ from the severing of the old tail to the three
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country. In the north‚ people use wider noodles and more onion. On the other hand‚ southern Vietnamese tend to use slimmer noodles‚ and the soup is sweeter. Until the mid-19501s‚ Pho became popular in southern Vietnam. It is now widespread in many countries such as Canada‚ Australia‚ and the United States. Recipe Ingredients: 1 kg beef knuckle with meat 300 grams beef oxtail 500 grams beef bone 1 small cup of vinegar 1 onion‚ chopped 100 grams whole star anise pods ½ cinnamon stick
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