Homologous structures Study guides, Revision notes & Summaries

UCI Bio 93 Final Exam Questions and Answers Already Passed What are the four most common elements in living matter? Hydrogen, Oxygen, Nitrogen, and Carbon --make up 96% of all living matter. Properties of Acids Donate H+ to a solution, accept electrons, and have a pH of <7 What happens in the S phase of the cell cycle? DNA Synthesis What happens in the G1 phase of the cell cycle? Growth -- cell contents are duplicated. What happens in the G2 phase of the cell cycle? More gr...

AP Biology Exam Questions and Answers Graded A+ Ligands A molecule that binds specifically to a receptor site of another molecule. Local Regulators A secreted molecule that influences cells near where it is secreted. Biotic Describes living factors in the environment. Abiotic Non-living things keystone species a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically. analogous structures ...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

IB Biology: Evolution Questions and Answers Already Passed What is a theory? A comprehensive explanation of some aspect of nature (vs a hypothesis, which is just a prediction as to the result of an experiment). What were some ideas from Darwin's time that influenced his work? French naturalist Buffon in the mid-1700s studied fossils and said the Earth must be older than previously assumed; Lamarck in the early 1800s proposed that life changes over time. Define acquired vs heritab...

Natural Selection - Answer-A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. Evidence of Evolution - Answer-1) Fossil Record 2) Embryology 3) Homologous Structures 4) DNA 5) Vestigial Structures common ancestor - Answer-the most recent ancestral form or species from which two different species evolved homologous structures - Answer-Structures in different species that are simila...

BIO 101 nvcc final EXAM TEST QUESTIONS ANSWRED CORRECTLY & VERIFIED What is an adaptation? A.a genetic change over time B.an increase in reproductive success by certain individuals C.a trait that is heritable and confers reproductive success D.differential reproductive success of a particular individual E. B & D - ANSWER C.a trait that is heritable and confers reproductive success In a population of dogs, long ears are dominant over short ears. If 50 of 200 dogs in a population...

1. Which of the following properties of HIV makes it difficult to trace the source of the virus from one person to the next? a. The transmission of the virus involves very few (often just one) viral particles. b. HIV evolves very slowly within the host. c. The host can have a genetically diverse population of viruses. d. Molecular phylogenies of viruses cannot be constructed. e. None of the above Answer: c Textbook Reference: 22.0 Phylogenetic trees in the courtroom Page: 464 Bloom’s ...

IB Biology Chapter 5 Questions and Answers Already Passed When does evolution occur It occurs when the heritable characteristics of a species change What shows that artificial selection can cause evolution selective breeding What are the evidence of evolution The fossil record, selective breeding, homologous structures, speciation, pattern of variation What is the mechanism of evolution Natural selection Analogous structures They are structures with difference in structure but...

Biology 1406 final exam practice questions and answers already passed What is not a part of the Cell Theory The molecules within a cell are alive the process that converts DNA to mRNA Transcription The process that converts mRNA to protein Translation The four cells produced in meiosis will have a n number of chromosomes and will differ genetically from each other what are the reactants of photosynthesis Carbon Dioxide, water and sunlight which scientists influenced Darwin by...

Individuals with variations that make them best suited to their environment are, on average, more likely to ___ A) Evolve B) Survive and reproduce C) Change over time D) Be larger B) Survive and reproduce Natural selection acts on ___, and ___ evolve A) Populations, individuals B) Individuals, populations C) Individuals, individuals D) Populations, populations B) Individuals, populations A weed that exhibits resistance to an herbicide ___ A) inherited the gene that made it resistant...