Directional selection Study guides, Class notes & Summaries

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...

What type of trait is not useful to construct a phylogenetic tree? correct answer: Analogous traits Which of the following traits are not unique to humans among the great apes? correct answer: Lack of a tail How complete is the fossil record of life on earth? correct answer: It is an incomplete record of Earth's history What is a polyphyletic group of organisms? correct answer: A group that does not include a common ancestor. What is the biological species concept based on? corr...

Fracture is a type of material failure. Of the following which is another type of material failure? - Permanent deformation. Which of the following statements best differentiates between a defect and a discontinuity? - Discontinuities can propagate and become defects. Nondestructive testing is often differentiated from other measurements or inspection techniques in that: - NDT involves indirect tests related to some other quality or characteristic of material. What are the functions of ...

evolution Correct Answer: a change in a population over time natural selection Correct Answer: traits within a population vary, and some individuals leave more offspring than others based on Fitness and selection pressure Five Mechanisms of evolutionary change Correct Answer: natural selection gene flow nonrandom mating genetic drift mutation Fitness Correct Answer: reproductive success 2 3 types of selection Correct Answer: directional stabilizing disruptive directional sele...

CWB Welding Inspector Level 2 Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Define Erosion-Corrosion? Answer: description of the damage that occurs when corrosion contributes to erosion by removing protective films or scales, or by exposing the metal surface to further corrosion under the combined action of erosion and corrosion. Q: What kind of units/equipment are affected by Erosion, Erosion-Corrosion? Answer: All types of equip...

Biology 1108 Unit 1 EXAM Questions and Answers 100% Pass The term "n" refers to the size of a population, that is, the number of individuals in that population. In general, in a sample of n individuals, the frequency of an allele is: A)the number of occurrences of the allele. B)the number of occurrences of the allele divided by n. C)the actual value of n D)the number of occurrences of the allele divided by twice the number of individuals in the sample (2n). E)twice the number of occur...

CWB Welding Inspector Level 2 Exam (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: Define Erosion-Corrosion? Answer: description of the damage that occurs when corrosion contributes to erosion by removing protective films or scales, or by exposing the metal surface to further corrosion under the combined action of erosion and corrosion. Q: What kind of units/equipment are affected by Erosion, Erosion-Corrosion? Answer: All types of equipment tat are exposed...

MEDICINAL CHEMISTRY AND MOLECULAR PHARMACOLOGY MCMP 442 Exam 2 2024 – QUESTIONS AND DETAILED CORRECT ANSWERS Which is the most likely reason that HIV-infected people with heterozygous HLA loci have a delayed progression to AIDS compared with patients who are homozygous at one or more HLA loci? A. The greater number of HLA alleles provides a wider variety of HLA molecules for presenting HIV-derived peptides to CD8 T cells even if HIV mutates during the course of infection. B. Heteroz...

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...

AP Bio Evolution Latest Update Already Graded A adaptive radiation rapid speciation of a single or a few species to fill many ecological niches allopatric speciation when populations physically separated by an extrinsic barrier evolve so that if the barrier breaks down, they can't breed artificial selection the intentional breeding of certain characteristics over others balanced polymorphism natural selection maintaining polymorphisms in a population bottleneck effect an evol...