probably also have gained insights into similarities and differences between species. On the second page of this test‚ arrange the following species into your own phylogenetic tree diagram you believe based on their shared characteristics. (a) Drosophila melanogaster (fruit fly) (b) Ectoedemia castaneae (moth) (c) Hyla cinerea (tree frog) (d) Rattus rattus (rat) (e) Danio rerio (zebrafish) (f) Homo sapiens (human) (g) Saccharomyces cerevisiae (yeast) (h) Lumbricus terrestris (earthworm) (i) Sus scrofa
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Mealworms and Caffeine Caffeine is the most commonly used stimulant in the United States. In North America‚ sixty to seventy five percent of caffeine consumption comes from coffee and fifteen percent to thirty percent comes from tea. It can be found in a variety of forms including: coffee‚ tea‚ chocolate‚ soft drinks. Caffeine is a part of a family of drugs known as methylxanthines.To work‚ caffeine disrupts the neurotransmitter adenosine. Caffeine is known to cause physical dependence in humans
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enzyme acts upon. Salivary glands- Produces Saliva for digestion. Stomach glands- Helps body make pepsin so you can digest protein Pancreas- Creates juices like hormones and insulin. The
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C. Calculus Formation Relationship with Plaque: * Calculus is formed by the deposition of calcium and phosphate salts in bacterial plaque. These salts are present in salivary and crevicular fluids. * Plaque mineralization begins within 24-72 hours and takes an average of 12 days to mature. * Calculus contributes to the disease by providing foci for plaque accumulation. It is not the causative or etiologic factor‚ plaque is. * Calculus is porous and can act as a reservoir or nidus
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Histology Review Supplement The slides in this section are designed to provide a basic histology review related to topics introduced in the PhysioEx lab simulations and in your anatomy and physiology textbook. From the PhysioEx main menu‚ select Histology Tutorial. The opening screen should appear after a few seconds. The Sort by menu is located at the top left. Click on the white drop-down menu and select “Histology Review” from the list. You will note that the slides in the histology module are
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Trigeminal nerve: V1 and V2 Trigeminal nerve provides large root of sensory nerve to the front of the face and head‚ and a small root of motor nerves to innervate muscles of mastication‚ mylohyoid‚ and digastric (anterior belly) Sensory root Fibres Convey common sensation (touch‚ temperature‚ pressure‚ pain) to the skin of the front of the face and the scalp as far back as the vertex of the head Sensory innervation to the oral cavity‚ dental and paradental structures For this reason‚ branches
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DIGESTIVE ENZYMES AND THEIR FUNCTIONS Mouth -the oral cavity or the mouth contains salivary glands that secrete a wide range of enzymes to aid the first step of metabolism of food. The salivary gland secretes the enzyme lysozyme which has an antibacterial action. The enzymes secreted by the mouth mainly provide protection against bacteria. Betaine helps to maintain a fluid balance inside the mouth. The lists of digestive enzymes secreted by the oral cavity are mentioned in the table. Enzymes
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Observation of Digestive and Circulatory System Introduction/Background: This week’s lab is about digestion and the circulatory system. Students will be learning about the different types of digestion and circulatory systems for different types of animals. Students will learn not only about the mechanical and chemical components of digestion‚ but also the complete and incomplete digestions. The lab will also teach the open and closed‚ single and double‚ circulation patterns. Several different models
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1m It receives impulses from the eyes / optic nerve and passes impulse to visual association area. Speech association area A 1m 1m 1m 1m 1m 1m 1m Endocrine glands produce hormones which diffuse directly into the blood. Exocrine glands release their secretions through ducts. For example‚ salivary glands secrete saliva through salivary ducts into the mouth while pancreas secretes insulin directly into the blood. Structured questions (p. 16-30) 9 HKCEE Biology 2006 I Q3 © Oxford University
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ball of the food that leaves the mouth is known as bolus. Saliva The salvia is a liquid secreted by three pairs of The parotid gland placed below the ear The submandibular gland and the sublingual gland both of these are placed below the tongue. It contains water‚ mucus and enzyme salivary amylase. The Three Functions of the Saliva To lubricate the food
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