Allopatric Study guides, Class notes & Summaries

BIO 1150 Exam 1 - Questions with Verified Answers Postzygotic barrier A reproductive barrier that prevents hybrid zygotes produced by two different species from developing into viable, fertile adults Morphological species concept A definition of species in terms of measurable anatomical criteria. Ex. body shape and other structures Ecological species concept A definition of species in terms of ecological niche, the sum of how members of the species interact with the nonliving and living parts o...

BIO 202 - Exam 1 Questions And Answers 100% Ac What are the properties of life? - ANSWER-*Cells and organization *Energy use and metabolism *Environmental response *Regulation and homeostasis *Growth and development *Reproduction *Biological evolution When was earth formed? - ANSWER-4.55 billion years ago When did life on earth first appear? - ANSWER-3.5 billion years ago What are the evolutionary mechanisms? - ANSWER-*Nonrandom mating *Migration *Genetic drift *Natural select...

OCR A-Level Biology Keywords| Questions With Updated And Verified Answers| 2024 Aminoacylace correct answer enzyme used to produce pure samples of l-amino acids. Abiotic factors correct answer non-living conditions in a habitat Abscission correct answer the fall of leaves Acetyl coenzyme a correct answer molecule that enters the krebs cycle from glycolysis through a linking reaction when coenzyme a combines with an acetyl group Acetylation correct answer addition of acetyl group ...

Monophyletic Group - Answer-includes all the descendants of a common ancestor, and its considered a natural grouping of organisms based on a shared ancestry. Paraphyletic Group - Answer-some (not all) of descendants of a common ancestor Polyphyletic Group - Answer-organisms from distinct lineages based on shared characters, but no common ancestor Homologies - Answer-similarities based on shared ancestry Analogies - Answer-similarities based on independent adaptations Synapomorphies - Answ...

What is microevolution? - The change in allele frequencies that occurs over time within a population. What is macroevolution? - Major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types. What is a species? - A group of populations whose members possess similar anatomical characteristics and have the ability to interbreed. What is allopatric speciation? - The formation of a new species in populations that are geographi...

AP BIOLOGY MIDTERM EXAM which of the following principles is NOT part of Darwin's original theory of evolution by natural selection? A. Evolution is a gradual process that occurs over long periods of time. B. Variation occurs among individuals in a population. C. Mutations are the ultimate source of genetic variation. D. More individuals are born than will survive. C If a population is ini Hardy Weinberg equilibrium then: A. it is evolving to adapt to environmental changes B. the f...

What is microevolution? - ️️The change in allele frequencies that occurs over time within a population. What is macroevolution? - ️️Major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types. What is a species? - ️️A group of populations whose members possess similar anatomical characteristics and have the ability to interbreed. What is allopatric speciation? - ️️The formation of a new species in po...

Macroevolution changes in a population over very long periods of time. Speciation the splitting of one species into two or more new species Biological Species Concept offers testable way to define a species that does not depend on appearance: The members of a species interbreed and have a shared gene pool, & each species is reproductively isolated from every other species. Gene flow occurs between the populations of a species, but not between pops of diff species. Biolo...

ENWC 201 - Final Exam (Best) Questions And Answers Ecological Succession - ANS Primary succession: occurs where no community previously existed (volcanic island) ~ secondary succession: occurs where there are remnants of a previous community ~ pioneer community: the first step in succession ~ climax community: the final step in succession Niche - ANS The functional role of an organism considered in the environment in which it lives; it's "job." ~ A niche is multidimensional ...

What are Darwin's three conditions for natural selection? 1) Heritable characters 2) Characters show variation between individuals 3) Differential fitness (= survival, reproduction) between individuals What is the definition of evolution? genetic change over time in a population Is all evolution caused by natural selection? no Is natural selection the only consistent force leading to adaptations? yes What types of evidence can be gathered for evolution? Fossil...