Biol 180 exam 2023 - Study guides, Class notes & Summaries

metapopulation correct answers a population of populations connected by migration replacement rate correct answers average fertility required for each woman to produce exactly enough offspring to replace her and her offspring's father community correct answers all species that interact in a certain area commensalism correct answers (+/0) one species benefits but the other is unaffected competition correct answers (-/-) individuals use the same resources - lower fitness for both c...

What is a synapomorphy? correct answers A trait that is similar in two or more species because it is derived from a trait that existed in a common ancestor. Why do synapomorphies arise during evolution? correct answers When a new species begins evolving independently, novel traits arise which are then passed on to its descendant species. What does it mean to say that one phylogenetic tree is more parsimonious than another? correct answers Fewer changes have to occur to make the origin of t...

pure line correct answers In genetics, a strain that produces offspring identical to the parents when self-fertilized or mated within the strain. Pure lines are homozygous for the gene under study. hybrid correct answers the offspring of parents from two different strains, populations, or species parental generation correct answers the adults used in the first experimental cross of a breeding environment F1 generation correct answers first filial generation. The first generation of offs...

special creation correct answers 1. All species are independent 2. Life on Earth is young 3. species are immutable Pattern correct answers summarizes observations about the natural world (what happened) Process correct answers a mechanism that produces the pattern/set of observations (how it happened) Darwin's 4 Postulates correct answers 1. variation exists within a population 2. some traits are heritable 3. survival/reproductive success is variable 4. the subset of individuals t...