CAMPBELL BIOLOGY TENTH EDITION Reece • Urry • Cain • Wasserman • Minorsky • Jackson 1 Evolution, the Themes of Biology, and Scientific Inquiry Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick © 2014 Pearson Education, Inc. Figure 1.1 How is the dandelion adapted to its environment? © 2014 Pearson Education, Inc. Figure 1.3 Explain why life is an emergent property. 7 Tissues 1 The Biosphere 6 Organs and Organ Systems 2 Ecosystems 10 Molecules 3 Communities 8 Cells 5 Organisms 9 Organelles 4 Populations © 2014 Pearson Education, Inc. Figure 1.UN01 Explain how the phrase “form=function “applies to the flower and the hummingbird. © 2014 Pearson Education, Inc. Figure 1.4 Compare and contrast a prokaryotic cell and eukaryotic cell. Eukaryotic cell Membrane DNA (no nucleus) Prokaryotic cell Membrane Cytoplasm Nucleus (membraneenclosed) Membraneenclosed organelles © 2014 Pearson Education, Inc. DNA (throughout nucleus) 1 µm Figure 1.5 How is the transmission of genetic information accomplished in this figure? 25 µm © 2014 Pearson Education, Inc. Figure 1.6 What is the purpose of the genetic material inherited by our parents? Nuclei containing DNA Sperm cell Egg cell Fertilized egg with DNA from both parents Embryo’s cells with copies of inherited DNA Offspring with traits inherited from both parents © 2014 Pearson Education, Inc. Figure 1.7 What are the four types of nucleotides that comprise DNA? A Nucleus C DNA Nucleotide T A Cell T A C C G T A G T A (a) DNA double helix © 2014 Pearson Education, Inc. (b) Single strand of DNA (a) Lens cells are tightly packed with transparent proteins called crystallin. Lens cell DNA A C T U C A A A C C G A G G T T T G G C G G U U U G G C G T T C A U C A TRANSCRIPTION Figure 1.8 Gene expression involves the ____________________ of DNA into mRNA, ________________________ of mRNA into a chain of amino acids, and folding of the amino acid chain into a _______________. mRNA TRANSLATION Chain of amino acids PROTEIN FOLDING Protein Crystallin protein © 2014 Pearson Education, Inc. Figure 1.9 Describe the difference between the movement of energy and the movement of chemicals in an ecosystem. ENERGY FLOW Chemicals pass to organisms that eat the plants. Light energy Chemical energy Heat Plants take up chemicals from the soil and air. Chemicals © 2014 Pearson Education, Inc. Decomposers return chemicals to the soil. Figure 1.10 Describe three ways in which organisms in this figure interact with each other or with their environment . Sunlight Leaves absorb light energy from the sun. CO2 Leaves take in carbon dioxide from the air and release oxygen. O2 Leaves fall to the ground and are decomposed by organisms that return minerals to the soil. Water and minerals in the soil are taken up by the tree through its roots. © 2014 Pearson Education, Inc. Animals eat leaves and fruit from the tree, returning nutrients and minerals to the soil in their waste products. Figure 1.11 Define feedback regulation. Compare and contrast negative and positive feedback. STIMULUS: High blood glucose level Negative feedback Insulin-producing cell in pancreas Insulin Circulation throughout body via blood Liver and muscle cells RESPONSE: Glucose uptake by liver and muscle cells © 2014 Pearson Education, Inc. Animation: Negative Feedback © 2014 Pearson Education, Inc. Animation: Positive Feedback © 2014 Pearson Education, Inc. Figure 1.12 Which level contains the greatest diversity of organisms? Least diversity? Explain your reasoning. Ursus americanus SPECIES GENUS FAMILY ORDER CLASS PHYLUM KINGDOM DOMAIN Ursus Ursidae Carnivora Mammalia Chordata Animalia Eukarya © 2014 Pearson Education, Inc. Figure 1.13 Why is the classification of protists so challenging? (a) Domain Bacteria 2 µm 2 µm (b) Domain Archaea (c) Domain Eukarya Kingdom Animalia 100 µm Kingdom Plantae Kingdom Fungi © 2014 Pearson Education, Inc. Protists Figure 1.14 What can be inferred by the similarity in cilia structure of distantly related organism? 5 µm Cross section of a cilium 15 µm Cilia of Paramecium Cilia of windpipe cells 0.1 µm © 2014 Pearson Education, Inc. Figure 1.15 Why do scientists “dig into the past” by excavating fossils from the Earth? © 2014 Pearson Education, Inc. Figure 1.17 Explain how the two main points articulated in The Origin of Species applies to the phrase “duality of life’s unity and diversity.” European robin American flamingo © 2014 Pearson Education, Inc. Gentoo penguin Figure 1.18-4 Explain why “editing” is an appropriate metaphor for how natural selection acts on a population’s heritable variation. 1 Population with varied inherited traits © 2014 Pearson Education, Inc. 2 Elimination of individuals with certain traits 3 Reproduction of survivors 4 Increasing frequency of traits that enhance survival Figure 1.19 Explain how the wings of the bat exemplify how adaptations aid in survival. © 2014 Pearson Education, Inc. Warbler finches Green warbler finch Certhidea olivacea Gray warbler finch Certhidea fusca Seedeater COMMON ANCESTOR Insect-eaters Figure 1.20 What is indicated by each twig? What do the branch points represent? Sharp-beaked ground finch Geospiza difficilis Budeater Vegetarian finch Platyspiza crassirostris Insect-eaters Tree finches Mangrove finch Cactospiza heliobates Woodpecker finch Cactospiza pallida Medium tree finch Camarhynchus pauper Large tree finch Camarhynchus psittacula Seed-eaters Ground finches Cactus-flowereaters Small tree finch Camarhynchus parvulus Large cactus ground finch Geospiza conirostris Cactus ground finch Geospiza scandens Small ground finch Geospiza fuliginosa Medium ground finch Geospiza fortis Large ground finch Geospiza magnirostris © 2014 Pearson Education, Inc. Figure 1.21 Provide an example of qualitative and quantitative data Jane Goodall might have collected during her time with chimpanzees. © 2014 Pearson Education, Inc. Figure 1.21b Collecting and analyzing data can lead to conclusions based upon two types of logic: inductive and deductive reasoning. Explain why the statement “If red meat has iron in it and beef is red meat, then beef has iron in it” is considered an example of deductive reasoning rather than inductive reasoning. © 2014 Pearson Education, Inc. Figure 1.22 What is a hypothesis? Use the figure to demonstrate the two important qualities of a hypothesis. Observation: Flashlight doesn’t work. Question: Why doesn’t the flashlight work? Hypothesis #1: Batteries are dead. Hypothesis #2: Bulb is burnt out. Prediction: Replacing batteries will fix problem. Prediction: Replacing bulb will fix problem. Test of prediction: Replace batteries. Test of prediction: Replace bulb. Result: Flashlight doesn’t work. Hypothesis is contradicted. Result: Flashlight works. Hypothesis is supported. © 2014 Pearson Education, Inc. Figure 1.23 Use the figure to explain why a scientific hypothesis is never proven but can be supported by data collected from experiments. EXPLORATION AND DISCOVERY FORMING AND TESTING HYPOTHESES SOCIETAL BENEFITS AND OUTCOMES © 2014 Pearson Education, Inc. COMMUNITY ANALYSIS AND FEEDBACK Figure 1.23g Theory building is a continuous social scientific endeavor. Compare and contrast a theory, hypothesis, and mere speculation. © 2014 Pearson Education, Inc. Figure 1.25 Do the results of the experiment support the camouflage hypothesis? Justify your answer using data from the graph. Results Percentage of attacked models Beach habitat Inland habitat 100 50 0 Light models Camouflaged (control) © 2014 Pearson Education, Inc. Dark models Non-camouflaged (experimental) Light models Non-camouflaged (experimental) Dark models Camouflaged (control) Figure 1.26 Using the figure below, explain how science differs from technology. © 2014 Pearson Education, Inc.
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