Biology 121

Biology 121 Exam 1 Study Guide | questions and answers Define Biology - The study of life. Life is characterized by what properties? - Emergent properties aka reflect hierarchy of structural organization What is the lowest level of biological organization - Atoms Know order of structural levels from atom to ecosystem - Atoms-Molecules-Organelles-Cells-Tissue-Organs-Organ Systems-Organisms-Populations-Community-Ecosystem Know the basic definition of each (e.g. what is an ecosystem?) - ...

Which of the following is not part of the scientific method? a. experimentation b. theory c. prediction d. fact e. hypothesis Correct Answer d. fact What is a hypothesis? a. the same thing as an unproven theory b. a tentative explanation that can be tested by experiments c. a verifiable observation d. a prediction that can be tested by experimentation Correct Answer b. a tentative explanation that can be tested by experiments All living organisms share five fundamental characteris...

Biology 121 EXAM 1 Chapters 1-3 | updated questions and answers Evolution - Descent with modification: genetic change in a population or species over generations: the heritable changes that have produced Earth's diversity of organisms. Changes in DNA through time. Biology - The scientific study of life List the 7 Properties of life that ALL living organisms share - 1. Reproduction 2. Growth and Development 3. Energy Use 4. Order 5. Cells 6. Response to the Environment 7. Evolution...

Prokaryotes are classified as belonging to two different domains. What are the domains? Correct Answer Bacteria and Archaea Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hieracrchy from least inclusive to most inclusive? Correct Answer molecule, organelle, cell, tissue, organ, organsystem, organism, population, community, ecosystem About twenty-five of the ninety-two natural elements are known to be essential to life. Which four of these...

What is the hierarchy of life from largest to smallest? - ️️Biosphere-Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is - ️️The bacteria that has become drug resistant The usual process for the scientific method is: - ️️Observation-question-hypothesis-prediction-experiment-results-conclusion Starch is a reserve polysaccharide made up of _____ subunits - ️️Gluclose Monosaccharides a...

What is the hierarchy of life from largest to smallest? - Biosphere-Ecosystem-Community-PopulationOrganism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is - The bacteria that has become drug resistant The usual process for the scientific method is: - Observation-question-hypothesis-predictionexperiment-results-conclusion Starch is a reserve polysaccharide made up of _____ subunits - Gluclose Monosaccharides are to polysacharides as ______ are...

A molecule is composed of atoms. True or False? Correct Answer True What is the difference between a theory and a hypothesis? Correct Answer A theory is supported by all existing evidence and have never been shown to be false. A hypothesis is a proposed explanation for a set of observations that requires further evidence to be supported or discarded. All living things evolve. True or False? Correct Answer True A population is part of a community. True or False? Correct Answer True Th...

Evolution - ️️Descent with modification: genetic change in a population or species over generations: the heritable changes that have produced Earth's diversity of organisms. Changes in DNA through time. Biology - ️️The scientific study of life List the 7 Properties of life that ALL living organisms share - ️️1. Reproduction 2. Growth and Development 3. Energy Use 4. Order 5. Cells 6. Response to the Environment 7. Evolution The levels of the biological organizations -...

Sloths are arboreal (tree-dwelling) creatures so why do they defecate (poop) on the ground? Which of the following is a hypothesis based on this question? A. If sloth defecating behaviors are to facilitate mating, then the removal of sloth feces will not affect mating success. B. Sloths defecate in this way in order to attract mates C. Removal of sloth feces is the best way to answer this question D. No sloths successfully mated in areas where sloth feces was removed E. None of the above Co...

What is the hierarchy of life from largest to smallest? Correct Answer Biosphere-Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is Correct Answer The bacteria that has become drug resistant The usual process for the scientific method is: Correct Answer Observation-question-hypothesis-prediction-experiment-results-conclusion Starch is a reserve polysaccharide made up of _____ subunits Correct Answer G...