STUDY GUIDE FOR LECTURE EXAM 1Please download this study guide and write the information/answers to each of the bullets on that sheet or on flashcards. Turn these in at the beginning of the exam (worth 5 points).The most important guide you have for studying for the test are your lecture notes. Below is a reminder of topics that will be tested. Your textbook also has good chapter review questions for practice.Introduction and Energy & Ecosystems●What is science? −What is biology?the study of living things −What is the significance of biology?allows humans to better understand their bodies, their resources and potential threats in the environment.●Describe the properties or processes we associate with life. Evaluate an object to determine if it is alive.●Define and give an example of each level of biological organization, starting with a biosphere and ending with atoms. −Understand biotic vs abiotic and provide examples of each. ●Understand flow (or transfer) of energy through ecosystems.−What is the ultimate source of energy for most living things on Earth?Chemical Basis for Life●What is an element and what makes each element unique? ●Understand and be able to diagram the structure and parts of an atom.−Describe the electrical charge of subatomic particles: protons, neutrons, and electrons.−What is the atomic number?●What are isotopes?●What are molecules?●Distinguish between ionic, covalent, and hydrogen chemical bonds. Understand how each of these bonds work, how strong they are, and be able to give an example of each type.−What is an ion? Be able to diagram an ion.