Chapter 25 Pre-Test Question 1 Part A Miller and Urey’s experiments that attempted to recreate conditions on early Earth were significant because _____. Hint 1. They gave credence to the idea of abiotic synthesis. ANSWER: they showed how polymers could form spontaneously on a clay substrate they produced the first protocells they showed how radiometric dating could be used to give the absolute ages of rocks and fossils proved the endosymbiotic theory they showed that organic
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We all reach a point in our lives where we find ourselves at a crossroads‚ facing the choice of which path to travel towards our future. In contemplating my path‚ I resolved to ardently pursue marine science. With that in mind‚ the graduate program for Marine Science at the University of North Carolina at Chapel Hill is the best fit for me because of its excellence and reputation in the field. I remember the first time I cultivated bacteria on the solid culture mediums. It was incredible to witness
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solar energy into chemical energy. * Photosynthesis All the chemical reactions that occur in a cell are called? * Metabolism All single-celled organisms including archaea and bacteria are prokaryotes? * False‚ because some Eukaryotes‚ including Protista are single- celled. Prokaryotes belong to? * Domain Archaea Which of the following correctly list the classification categories from least to most inclusive? * species‚ genus‚ family‚ order‚ class‚ phylum‚ kingdom‚ domain Which
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Biology‚ the Study of Life C H AP T E R O U T LI N E Science Helps Us Understand the Natural World 1.1 Scientists use a preferred method 4 1.2 Control groups allow scientists to compare experimental results 6 THE CELL THEORY: 1 Fire Ants Have a Good Defense ire ants have a red to reddish-brown color‚ but even so‚ they most likely take their name from the ability to STING. Their stinger protrudes from the rear‚ but in a split second‚ they can grab a person’s skin with their mandibles and
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1) Why was the use of the telescope by Galileo‚ 400 years ago‚ such a significant event in the history of astronomy? (120 words‚ 2 marks) The introduction of Galileo’s refracting telescope was a significant event in history because of the conclusions Galileo proved using his instrument. He disproved the Roman Catholic Church’s belief that the Earth was at the centre of the universe‚ instead of the Sun. He observed the moon-like areas on Venus that could only be true if the Sun was at the centre
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Bio 100 Lecture Final Study Guide (All answers are true or false) 1. The level of scientific thought that we have the most certainty in is the hypothesis. 2. Controlled science experiments have no validity in biology research. 3. All living things obtain energy from their environment. 4. The four organic macromolecule groups common to all living things are carbohydrates‚ proteins‚ nucleic acids‚ and fats. 5. All living things are composed of one or more cells. 6. Humans are
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Chapter 1 Introduction: Themes in the Study of Life Multiple-Choice Questions 1) Which of the following properties or processes do we associate with living things? A) evolutionary adaptations B) energy processing C) responding to the environments D) growth and reproduction E) all of the above Answer: E Topic: Overview Skill: Knowledge/Application 2) Which of the following is not a theme that unifies biology? A) interaction with the environment B) emergent properties C) evolution D) reductionism
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the output of a process. Detects the body has enough x so it stops producing it… Positive Feedback- the system increases production in response to a stimulus. Pregnancy. Domain- Three groups‚ highest level of classification. Bacteria‚ Archaea & Eukarya Archaea- Prokaryotes that live in earths extreme environments. Boiling Springs etc Natural Selection- as animals reproduce‚ they pass down traits that are advantageous to the species survival enabling them to adapt to their environment. Inductive
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MCB300 Exam 2 1. Which of the following statements is false? a. ATP synthase is found in all living organisms b. ATP synthase is a redox-driven proton pump c. ATP synthase can use proton motive force (PMF) to drive ATP synthesis d. ATP synthase can hydrolyze ATP to generate proton motive force (PMF) e. The Boyer model describes how rotary motion is used to synthesize ATP in ATP synthase 2. Which of the following is not associated with photosynthesis? a. Use of bacteriorhodopsin as a light-driven
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Evolution as a theory * Theory- in science‚ a well substantiated explanation of some aspect of the natural world Evolution- the accumulation of inherited genetic changes within populations over generations * Does not refer to changes that occur in an individual within its lifetime * Not limited to speciation that may only occur over long periods of time * Can occur over a few generations‚ and is most commonly expressed as an adaptation to a changing environment or the change in allele
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