Tapeworms are the dominant member of the class Cestoidea. They are ribbon-like‚ segmented creatures living in the intestines of their vertebrate hosts. There are a dozen orders in this class‚ most living in fish but two that use humans as hosts. Tapeworms cling to the intestinal wall of their hosts with suckers‚ hooks‚ or other adhesive devices. Having no mouth or gut‚ they receive their nourishment through their skin. Further‚ they have no type of sensory organs. White or yellowish in color‚ species
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Results Larval Studies Normal Honey Bee Development of the Control Plate By day two‚ it seemed that three of the larvae did not survive due to their small size compared to the others. By day four‚ it seemed that four did not survive; however‚ movement was present in the others. By day eight‚ most of the larvae died due to mold development. However‚ three of the larvae started to progress into the pupal stage‚ but some of them did not complete the transformation. At day eleven‚ there were signs of
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Parasitic Nutrition 21 May 2011 10:43 = organisms that live on or in another organism obtaining nourishment at the expense of the host and causing harm. Gut parasite (Taenia solium) = tapeworm Primary host = human (eat uncooked infected pork) Secondary host = pig (drainage channels contaminated by human faeces) Adaptations… - Suckers & hookers (attachment) - Body covering (immune responses) - Thick cuticle (inhibitory substances = enzymes) - Simple body systems (reproduction) - Very thin & large
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David Kennedy Evolution Group 4 9/22/13 Lab 1: Insect Diversity and Evolution Introduction: Insects dominate the Earth with vast diversity and number of species. They are arthropods that have articulate appendages‚ a hard exoskeleton‚ compound eyes‚ and an open circulatory system with a dorsal heart. Insects have large populations in many habitats‚ even urban environments such as Chicago. Insects are close relatives to Myriapoda‚ Chelicerata‚ and Crusacea organisms (Hoffmann 63). They are incredibly
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Lab Report Useful links http://www.psychwww.com/tipsheet/labrep.htm http://mhhe.com/biosci/genbio/maderinquiry/writing.html https://owl.english.purdue.edu/owl/section/2/10/ A scientific report usually consists of the following: 1. Title 2. Abstract 3. Introduction 4. Materials and methods 5. Results 6. Discussion 7. Literature cited Title The title should be less than ten words and should reflect the factual content of the paper. Scientific titles are not designed to catch
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Natural Vegetation Tropical Rainforests 10º North and South of the Equator High rainfall and temperatures (over 1500 mm yearly; about 27º) Typically located in the Amazon Basin in South America‚ Congo Basin in Africa and parts of Southeast Asia such as Indonesia and Malaysia. ~400 species per hectare 5 distinct layers: Emergent: 30m to 50m; tall thick straight trunks Canopy: 15m to 30m; wide‚ shallow‚ umbrella-shaped crowns form a continuous leaf cover‚ preventing sunlight from penetrating
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AP Biology‚ Chapter 33 Invertebrates [by clade] SUMMARY INTRODUCTION PARAZOA Introduction Phylum Porifera: Sponges are sessile with porous bodies and choanocytes 1. Identify the parts of a sponge (including the spongocoel‚ porocyte‚ epidermis‚ choanocyte‚ mesohyl‚ amoebocyte‚ osculum‚ and spicule) and describe the function of each. a. Lifestyle: sessile‚ immobile filter feeders b. Water circulation i. Epidermis seals outside ii. Flagellated choanocytes lining
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Sounds innocuous‚ right? Not a word about the mosquito’s proboscis‚ which can furtively slip through your skin. I am highly sensitive to those mosquitoes’ bite‚ I am extremely allergic to them to the point where getting bitten actually burns. The burning and itching will wake me up out of a deep sleep. That little
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When the aliens came‚ everyone expected them to be aggressive and take over the planet‚ but they did not. These aliens are portrayed in Floyd Looney’s “When the Tardigrades Came…” These aliens instead of taking over the planet‚ did the opposite‚ they adopted the culture of humans. It took some time for both sides to get more used to each other‚ but not all the culture of the aliens was lost. This bit of culture not lost‚ was kept secret from the humans‚ and when the humans found out‚ there was an
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other moths. Similarly‚ hummingbird moths are much less likely to fly away if approached. They love warm weather and cannot in the cold temperatures. The Hummingbird Hawk moth or sometimes the Humming moth is a species of Sphingidae. Its long proboscis and its hovering movement‚ accompanied by a light noise of a humming sound‚ make it look like a hummingbird while feeding on flowers. It can be confused with a humming bird by its behavior‚ actions‚ and eating habit. They are very similar and very
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