Biology Notes - Ecology and Eco-Systems Environment It is everything that surrounds you. It includes all natural living and non-living things that are included within the environment. All living organisms depend on the natural environment they live in. A natural environment is very different to a man made environment because a man made environment is heavily influenced by people whereas a natural environment is effected by people by a very small amount. Ecosystems An area containing
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Adapted from L. Miriello by S. Sharp AP Biology Guided Reading Chapter 23 Evolution Name __________________________ 1. What is the smallest using of evolution and why is this important to understand? 2. Define the following terms: a. Microevolution b. Population c. Population genetics d. Gene pool 3. What is the Hardy-Weinberg Theorem and why does it appear to be an apparent contradiction to evolution? 4. What is Hardy-Weinberg equilibrium? What are the five conditions for H-W
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Edusmart Study Centre Biology Notes Class 10 1. How are our eyes protected? • Eyes are situated in the eye-socket of the skull • Eyelids with eyelash protect from dust and other particles • Tears keep eyes wet ‚ washes away the dust particles and prevent infection • The conjunctiva covers the front portion of the eye except cornea 2. Which are the 3 layers of human eye? • Sclera –The outermost‚ strong layer‚ that gives shape. Its
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Biology- Maintaining a Balance Summary 1. Most organisms are active in a limited temperature range 1. identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are proteins which act as catalysts in living things (they lower the amount of energy needed for a reaction‚ therefore increasing rate of reaction). Enzymes speed up reactions but are not used up by them. Enzymes catalyze only one
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Chapter 1: Biology- The study of life A Hierarchy of Organization 1. Molecules 2. Organelle 3. Cell 4. Tissue 5. Organ 6. Organism Emergent Properties- Novel properties that emerge as each step up the hierarchy of biological order is taken. Reductionism- Reducing complex systems to simpler components that are more manageable to study. Cells- The lowest level of structure capable of performing all the activities of life‚ all organisms are composed of cells which are the basic units of structure
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AP biology FRQ Courtney DeMane 1.22.13 block 7 A). The chemical composition and structure of proteins seems quite confusing at first but one it is broken down into levels it is much more understandable. Amino acids are the basic building blocks of proteins and they contain amino‚ carboxyl and R groups. These R groups that are in the amino acids are what determine the properties of the specific amino acids. For structure‚ there are 4 levels. The first one being the primary level. These are made
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increasing pH? Which structures‚ if found in a cell‚ would provide the best evidence that the cell is eukaryotic? Where in the cell do the following occur? Calvin cycle‚ glycolysis‚ Kreb’s cycle‚ electron transport chain. Students in a biology class tested the effects of antibiotics on the growth of bacteria. They cultured bacteria in four glass Petri dishes and then added different amounts of antibiotic to each dish. After the experiment is completed‚ what should be done with the Petri
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Chapter 16: Endocrine System For this assignment‚ please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors. There is a tutorial on the endocrine glands in Blackboard under the Lab Tutorial button. Use it to study the glands. Under the External Links button The nervous and endocrine systems maintain homeostasis in the body. The nervous system is a fast but short-lived
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CHEMICAL SIGNALS MAINTAIN HOMEOSTASIS Endocrine System: a system of glands that secrete hormones to regulate body function Hormones: chemical messengers or regulators • they are released by cells in one part of the body and affect cells in other parts of the body to speed up or slow down processes. Endocrine Hormones – are produced in glands and secreted directly into the blood and distributed by the circulatory system. Makes hormones and regulates the pituitary gland Pineal gland (makes serotonin
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BLUEPRINT OF LIFE: CHAPTER 2 GENETICS Gregor Mendel’s experiments helped advance our knowledge of the inheritance of characteristics 2.1 GREGOR MENDEL AND THE BIRTH OF GENETICS Gregor Mendel (1822-84) – ‘the father of genetics’ Born in Austria He was an Augustinian monk He worked as a teacher and as an investigator He observed the growth of peas He recorded the ratios of characteristics that appeared in the offspring His discovery stated he observed a pattern in the inheritance of characteristics
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