UTSA BIO II Exam 1 Study Guide Solutions

UTSA BIO II Exam 1 Study Guide Solutions Science - ANSWER-Scientific method of observing natural phenomenons To be scientific, ideas/questions must be - ANSWER-1. Testable 2. Falsifiable Hypothesis - ANSWER-A testable statement (ex. aggression in rats is related to testosterone level) Pika - ANSWER--mammals + endothermic -forging for specific plants -herbivores in Alaska Science is all the - ANSWER-possibilities Philosophy of science - ANSWER-we SUPPORT not PROVE. We can REFUTE or DISPROVE ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/7 Theory - ANSWER--an extreamely well supported COLLECTION of related statements that has been repeatedly tested and confirmed -"fact" -Details can change without affecting major premise. Prediction - ANSWER-(Ex. blocking testosterone will reduce aggression in rats) Evolution - ANSWER--Change from one generation to the next -underlies ALL biology (foundation) Evolution is the change of what? - ANSWER--phenotype -allele frequencies -genotype How do we know that evolution happens? - ANSWER-1. Direct Observation 2. Fossil Record 3. Homology (vs. homoplasty) 4. Biogeography Evolution happens because we can... - ANSWER--observe in the present ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/7 -historical evidence -mathematically proved 1. Direct observation EXAMPLES - ANSWER--Mexican tetras (no pigment/eyes and react to shadows) -Soap berry Bugs (shorter beaks after host switch) 2. Fossils - ANSWER-Rapid burial in mineral water in sedimentary rock 3. Geology - ANSWER--Relative dating -Numerical dating (age) Principle of original horizontaly - ANSWER-sediment layer on top of each other horizontally Principle of superstition - ANSWER-layers on top of each other Principle of crosscutting relationships - ANSWER--a rock or feature must first exist before anything can happen to it; -dike (intrusion) is younger. "transitional forms" - ANSWER-Have a ancentral and derived characteristics of line