BIO 169 Ch. 20 S.G. Name: __________________________ Date: _____________ 1. The anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm. A) Epicardium B) Abdominal cavity C) Pericardium D) Mediastinum E) Thoracic cavity 2. The membrane that surrounds and protects the heart is called the A) pericardium. B) pleura. C) myocardium. D) mediastinum. E) endocardium. 3. The apex of the heart is normally pointed
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Leaf anatomy‚ food for plants and animals‚ plant functions‚ and plant and animal cells are all subjects that were highly mentioned throughout the first quarter. The theme of Energy Transfer is prominent in all of these topics. The Interdependence in Nature is also a theme that comes up especially in plant functions‚ plant and animal cells‚ and leaf anatomy. Although there were many different sub-themes after many experiments‚ research‚ and discussion in class‚ I find that the two main themes that
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CHAPTER 7 LIMITS AND CONTINUITY Focus on Exam 7 1 (a) |x + 3| = { -x - 3‚ x < -3‚ x + 3‚ x ≥ -3. (x + 1)(-x - 3) x+3 = -x - 1 (x + 1)(x + 3) For x ≥ -3‚ f (x) = x+3 =x+1 Hence‚ in the non-modulus form‚ -x - 1‚ x < -3‚ f (x) = x + 1‚ x ≥ -3. For x < -3‚ f (x) = { (b) The graph of f(x) is as shown below. y = −x − 3 y 2 y=x+1 1 −3 −2 −1 x O −1 −2 (c) lim f (x) = 2 x → -3- lim f (x) = -2 x → -3+ (d) lim f (x) does not exist
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Introduction Good Morning Everyone. My name is and this is ‚ and . We will be presenting to you on how Light affects gene expression with focus on Maize leaves. This is an unrelated but neat photo of gem corn which is produced as a result of selective breeding. Anyways‚ most plants require light in order to grow and conduct photosynthesis. Plants that have been previously grown in the dark are incapable of photosynthesis since they lack chlorophyll and many polypeptides needed for light harvesting
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Script (Having a conversation) Mira: Wait who are you? Sayjal: What..? We were just talking‚ I am Sayjal! Mira: No‚ get away from me! Stop attacking me you’re a monster! Sayjal: Calm down‚ I think you have Schizophrenia. Mira: Hey Sayjal‚ what are you talking about we were just having a normal conversation‚ why are you freaking out? Are you okay? Sayjal: Mira I know that you feel normal right now‚ but you just had a mental episode. I really think that you need to go to the doctor‚ because
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QUESTIONS 1. According to the Hardy-Weinberg theorem‚ p + q 1 and p2 + 2pq + q2 1. What does each of these formulas mean‚ and how are the formulas derived? p + q 1: If you add all the dominant alleles for a gene to all the recessive alleles for the gene‚ you get all of the alleles for that gene‚ or 100% of the alleles for the gene. (Note: This assumes the gene has only two alleles.) p2 + 2pq + q2 1: If you combine all the individuals that are homozygous dominant for a gene with all
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What is metabolism? All living things must have an unceasing supply of energy and matter. The transformation of this energy and matter within the body is called metabolism. Metabolism includes two different types: catabolism and anabolism. Catabolism is destructive metabolism. Typically‚ in catabolism‚ larger organic molecules are broken down into smaller constituents. This usually occurs with the release of energy. Anabolism is constructive metabolism. Typically‚ in anabolism‚ small precursor
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Radioactive isotopes (radioisotopes) are isotopes which are atoms of the same element that are chemically identical but vary in the number of neutrons they contain. Radioactive isotopes can participate in reactions just like non radioactive elements. Autoradiography is a technique used to trace the movements of certain substances around plants. An example of this is carbon 14. Carbon 14‚ a radioactive isotope‚is added to the carbon dioxide supply of the plant‚ to study the movement of products
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C) Type of pollution. 1. WATER POLLUTION — any contamination of water that has deteriorated its quality to living things. * SOURCE: There are many causes for water pollution such as effluent outfalls from factories‚ refineries and waste treatment plants. More to that‚ the contaminant that enter the water supply from the soil or groundwater systems. Soils and groundwater contain residue of human agricultural practise and improperly disposed of industrial wastes. Other than that‚ the habits
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11-9-12 Article Summary In Power Failure‚ Megan Scudellari talks about mitochondrial dysfunction and how it can influence complex diseases. She introduces Douglass Wallace and talks about how he came up with this idea that maybe the mitochondria is linked to certain diseases such as Alzheimer’s and cancers. He was the first person ever to discover that mutations in mtDNA cause disease and from that point on his research began to expand. At first many scientists turned a blind eye to this theory
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