BIOL1011K Midterm Exam Study Guide (1).docx - BIOL1011K...

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BIOL1011K, Introduction to Biology [Fall 2018] Mid-Term Exam Study Guide Units 1-4 Use the following list of topics to prepare for the final examination. The topics listed below coincide with the textbook’s chapters. Be familiar with: I. Introduction to Biology a. The Levels of Organization i. Cells tissues organs organ systems organism population community ecosystem biosphere Atoms, molecules (macromolecules), organelles, cells (prokaryotes / eukaryotes), tissues, organs, organ systems, organisms, population, community, ecosystem, biosphere b. The Characteristics of Living Things - Composed of one or more cell. - Reproduces using DNA. - Obtains energy from their and environment. (support metabolism) - Senses their environment and responds towards it. - maintains constant homeostasis. (internal environment) - Can evolve as groups i. Properties of Life- order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, homeostasis, energy processing ii. Prokaryotes- a unicellular organism that lacks a nucleus or any other membrane-bound organelle iii. vs. Eukaryotes- an organism with cells that have nuclei and membrane-bound organelles c. The Process of Science i. Experimental design (the role of a control )- A part of the experiment that does not change. A control is used to establish a
baseline to compare the results of the main experiment to. Having a control group rules out any environmental variables, such as temperature and humidity, from affecting the conclusion of the experiment. ii. Definition of a theory- a thoroughly tested and confirmed explanation for observations or phenomena iii. Definition of a hypothesis- a hypothesis is a suggested explanation that can be tested . and what make a hypothesis valid- A hypothesis must be testable to ensure that it is valid

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