BIO 105 Exam 1 Review Exam | Questions & 100% Correct Answers (Verified) | Latest Update | GradeA+

BIO 105 Exam 1 Review Exam | Questions & 100% Correct Answers (Verified) | Latest Update | GradeA+ Define Biology Correct Answer: study of living things Know the steps in the scientific method Correct Answer: 1. Observation 2. Question 3. Hypothesis 4. Experiment 5. Analyze 6. Hypothesis- True 7. Report results *6. Hypothesis-Fasle *7. Revise hypothesis Recognize what science can and cannot investigate Correct Answer: it can investigate reasoning: why, how, what... 2 cannot investigate right or wrong What special aspect determines an element's properties Correct Answer: number of protons and neutrons Know how to determine the number of protons, electrons, and neutrons in an element by its entry in the periodic table Correct Answer: Atomic # (top)- protons Atomic mass (bottom)- sum of protons & neutrons Period (columns)- # of shells (2 in first, up to 8 in others) Group (rows)- # of electrons in outer shell Know what an isotope is Correct Answer: atoms of the same element that diiffer in number of neutrons Know the 4 major and 4 trace elements important to life Correct Answer: Carbon, oxygen, hydrogen, nitrogen Calcium, phosphorus, potassium, sulfur Know what a valence is Correct Answer: outer shel