Bottleneck effect - Study guides, Class notes & Summaries

CHAPTER 3: Perceptual Processes II: Attention and Consciousness 3-1. According to your textbook’s introduction to Chapter 3, attention a. relies exclusively on bottom-up processing. b. uses both top-down and bottom-up processing. c. is a time-consuming but highly accurate cognitive process. d. is a quick process that is highly inaccurate. Answer: b Section Ref: Overview of Attention Difficulty: Easy Objective: 3.1 Objective text: Discuss two different types of attention and revie...

Frenchman responsible for the belief that organisms could inherit acquired characteristics Ans- Jean Baptiste de Lamark Time Spirit Ans- Zeitgeist Effect caused when a natural disaster results in a few individuals remaining in a population with different allele frequencies by chance Ans- Bottleneck effect Author of "Principles of Geology"; a book that would have an important influence on Darwin Ans- Sir Charles Lyell He failed to become a doctor and a minister, but went on to rev...

BIO 107 Study Guide QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Microevolution Evolutionary change below the species level; Change in allele frequencies over generations. It is called micro evolution because it focuses on evolution in population, which is the smallest scale. (individuals do not evolve.) 3 mechanisms that cause allele change Natural seletion, genetic drift( chance events that alter allele frequencies), and gene flow (the transfer of alleles between populatio...

bio 117 Exam 1 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+ evolution Correct Answer: a change in a population over time Natural selection Correct Answer: the process by which populations change over time What is necessary for natural selection to occur? Correct Answer: traits within a population vary -some individuals leave more offspring than others (fitness) Mechanisms of evolutionary change Correct Answer: Natural selection, genetic drift, gene flow...

A certain species of sea otters lives off the coast of Alaska. Some have the ability to tolerate the colder waters farther north while others stay in the central coastal area. As a result of a large oil spill along the northern coast, most of the otters living in those colder waters die. Afterwards, the population of otters, in general, is now less tolerant of cold water. What is this an example of? A.) allopatric speciation B.) hybrid sterility C.) bottleneck effect D.) sympatric specia...

convergent evolution - unrelated or distantly related organisms evolve similar body forms, coloration, organs, and adaptations natural selection - the process whereby organisms better adapted to their environment tend to survive and produce more offspring (acts on individuals but populations evolve) Judeo- Christian perspective - The Creator: God made everything Linnaeus - Binomial nomenclature and nested classification system Cuvier - fossils in strata- catastrophism Hutton and Lyell - g...

TAMU Biology 112 Final Exam Questions and Answers 100% Pass Linnaeus - Answer- Binomial nomenclature Darwin - Answer- Fossils, strata Cuvier - Answer- catastrophic events caused extinction Hutton and Lyell - Answer- Gradualism, earth is OLD Lamarck - Answer- Use it or lose it, we get bigger and better, Adaptations - Answer- Inherited characteristics that enhance survival and reproduction Descent with Modification - Answer- Common ancestor (unity in life) aka evolution Alfred Wallace - A...

Bio 100 Exam 3 (Jaeger UNLV) Questions and Answers 100% Pass **Explain biotic potential.** Most populations can produce more offspring than the environment can support. **Define heritable.** Traits that can be passed on to the next generation. **Describe the concept of evolution of acquired characters.** Over time, an organism can accumulate enough changes that one species may diverge into two, tracing back through ancestral species. **List the five agents of evolution.** Nat...

Bio 100 Exam 3 (Jaeger UNLV) Questions and Answers 100% Pass **Evolution is defined as** any change in the phenotype of a population over successive generations due to genetic factors. **Common Descent with Modification entails** species undergoing modifications across generations. These changes can lead to the emergence of new, distinct species. **Species are** various types of organisms. Individuals within the same species share genetic similarities and can potentially interbre...

McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers ;( Real actual exam) Why might Pasteur's experiment be inconclusive? - Correct Answer The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - Correct Answer To ensure that results were not achieved by random chance What is the definition of a replicate? - Correc...