Sympatric - Study guides, Class notes & Summaries

What is micro-evolution? Changes in allele frequencies within populations, often associated with adaptation, can be measured from one generation to the next "small changes" What is macro-evolution? Major changes in the history of life, origin of new species, generates biological diversity "big changes" What is a species? a group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring What is allopatric speciation? Speci...

A population of rodents, called population A, lived on a large landmass. One group of the population dispersed to a nearby island. Two million years later, the island population split into two smaller, equalsized populations when a river formed across the middle of the island. Now two new species, A1 and A2, have evolved on the island. They have replaced the population from which they were derived. Use the image to answer the question.Which diagram represents the phylogeny of the populations ...

What is some evidence for endosymbiosis? - -Mitochondria replicate similar to binary fission -plastids have circular chromosomes -ribosomes are similar to prokayotes What is Hardy Weinburg equilibrium? - p^2 + 2pq+ q^2 =1 -If a population is at equilibrium, (percentages don't change) -No genetic drift, gene flow, no natural selection, no new alleles, no sexual selection -Genetic drift, gene flow, and natural selection cause most evolutionary change Acquired vs. Inherited traits - Acquire...

Molecular phylogeny correct answers It compares the structure of a particular molecule from different organisms to discover their degree of evolutionary relation. Somatic cell correct answers A cell in an organism which isn't a gamete. DNA correct answers Deoxyribose nucleic acid. Carries the genetic information for cells and some viruses. mRNA correct answers Messenger ribose nucleic acid (single stranded). The product of transcription. Speciation correct answers The process throug...

BIOL 171 Final Exam Questions and Answers 2024 Evolution is a theory that can be applied to different species, but cannot be directly tested False Several scientific studies have reported results that reject the process of evolution False Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:14 / 0:15 Full screen Brainpower Read More Two species of birds that are closely related have evolved from an extinct common ancestor True Crab and huma...

What is micro-evolution? - Changes in allele frequencies within populations, often associated with adaptation, can be measured from one generation to the next "small changes" What is macro-evolution? - Major changes in the history of life, origin of new species, generates biological diversity "big changes" What is a species? - a group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring What is allopatric speciation?...

Taxonomic hierarchy - a system of classifying and naming species for the purpose of understanding and establishing relatedness between species or larger groupings Kingdom Phylum Class Order Family Genus Species What words are used to name the individual type of organism? - Genus and Species Super and Sub prefixes - used to further describe refinement of groupings above and below a certain level 3 criteria for designating species: Boys Make Pasta - biological, morphological, phylogen...

Gause's principle of competitive exclusion - no two species can occupy identical niches indefinitely when resources are limiting -either they can't exist for a long time or there niches are somewhat different Sympatric species often avoid competition by living in different portions of the habitat, or using different food or other resources Ex: anolis lizards on caribbean island Character displacement differences between symmetric species that are favored by natural selection in order to part...

BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+) When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrandom mating *Migration *Genetic drift *Natural selection When does allopatric speciation occur? - correct answer when members of the same species become geographically separated When does sympatric speciation oc...

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...