Stabilizing selection Study guides, Class notes & Summaries

Experiment - Answer-test of a hypothesis. It can be observational (observe the system) or manipulative (perturb the system). The experimental method is the scientific method. Hypothesis - Answer-universal proposition that suggests explanations for some observed ecological situation. Model - Answer-verbal or mathematical statement of a hypothesis. Principle - Answer-universal statement that we all accept because they are mostly definitions, or are ecological translations of physical-chemic...

WSU Anthropology 101 Anthropology - correct answer The scientific study of human beings, looking at how cultures are dif/similar Cladogenesis - correct answer Speciation through branching so two or more species are formed Anagenesis - correct answer directional shift in a populations average characteristics (straight line) Charles Darwin - correct answer "on the origin of species" 1800s, HMS Beagle, Darwinnian fitness - correct answer the ability of an individual to survive and re...

BIO 152-- FINAL EXAM questions and answers 2023.Which of the following is not an observation or inference on which natural selection is based? a. There is heritable variation among individuals. b. Poorly adapted individuals never produce offspring. c. Species produce more offspring than the environment can support. d. Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less well suited. e. Only a fraction...

BIOL1082 EXAM ANSWERS 2023 A finch species living in the Galapagos Islands feeds on small insects found in flower buds. Its bill is most likely... a. small and narrow b. broad and powerful c. broad and sharp d. small and wide a Which of the following statements about the relationship between genotype and phenotype is true? a. A given genotype always produces a specific phenotype b. Genotype alone determine all phenotypes c. A particular phenotype can be produced by more than one geno...

Ecology Science Olympiad Exam Questions And Answers Succession - answerprogressive replacement of one community by another until a stable climax is established 2 types of succession - answerPrimary: succession of vegetation from a barren desert or water to a climax community Secondary: Biotic communities develop in a place where the natural vegetation is gone but soil is present Climax Community - answercommunity of vegetation (plants, trees, fungi, etc) that have reached a steady state...

Interpret this statement: Extinct fossil species are typically succeeded by similar living species - Answer Extinct and living forms represent ancestors and descendants Which is an example of developmental homology a) gene content b) similar organismal structures c)vestigial traits d) similar embryonic traits - Answer d) Which is not one of Darwin's 4 Postulates: a) Individuals in a population vary in their traits b) These differences are not heritable; they are not passed onto offs...

Natural Selection the process that results in adaptation of a population to the biotic and abiotic environments. Polygenic controlled by more than one pair of alleles located at different gene loci Directional Selection occurs when an extreme phenotype is favored and the distribution curve shifts in that direction. Example: resistance to antibiotics and pesticides Stabilizing Selection Occurs when an intermediate phenotype is favored. Individuals near the average are fav...

BIO 101 NVCC FINAL ACTUAL EXAM QUESTIONS WITH 100% VERIFIED CORRECT ANSWERS Which of the following is INCORRECTLY paired? A.Buffon -- suggested new species arise from a common ancestor B.Hutton -- theory of catastrophism that brief & violent global upheavals are responsible for geological formations C.Cuvier -- recognized that lower layers of rock contain older fossils D.Lyell -- uniformitarianism that natural processes are slow and steady - ANSWER B.Hutton -- theory of ca...

bio 1108 exam 1 (herrick) questions and answers 100% pass what are two factors that contribute to phenotype? - Correct Answer ️️ -genotype and environment species - Correct Answer ️️ -individuals that are able to exchange genetic material gene pool - Correct Answer ️️ -all alleles present in individuals of that species populations - Correct Answer ️️ -interbreeding groups of organisms of the same species living in the same geographical area what are two main sources that l...

BIS 2B Final Exam (Part I) With 100% Correct Answers 2023 Community - set of species in a particular place Ecosystem - all species and their abiotic environment in a place Biological evolution - change in the properties of populations over the course of generations caused by descent with modification Natural selection - process that produces adaptations from differential reproductive success among organisms in same populations Stabilizing selection - favors and...