Evolution (Mayfield)
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each of the black spaces below before clicking
on it to display the answer.
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How do scientists use DNA as evidence for evolution? | DNA is a code. If the codes are similar then that is evidence that the evidence that the organisms are related
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What is the human appendix an example of? | Vestigial structure
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What is genotype? | Genes
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What is phenotype? | Physical characteristics
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How is genotype related to phenotype? | Genotype directly affects phenotype
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What is natural selection? | Survival of the fittest
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What traits does the natural selection process protect? | It protects the best traits because organisms with best traits are successful. They survive, reproduce and pass on genes and traits to offspring.
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What are the 3 main types of adaptations? | Physiological, Structural, Behavioral
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What does the physiological adaptation mean? | How the body works (venom)
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What does the structural adaptation mean? | Shape of the body (giraffe neck)
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What does the behavior adaptation mean? | How an organism behaves (bird building a nest)
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What is a homologous structure? | Same structure, not necessarily the same function (cat and human arm)
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What are adaptations? | Traits that help organisms survive in a given environment
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What type of adaptation allows you to regulate body temperature? | Physiological
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What can scientists use to determine the evolutionary relationship between two species? | Bone structure, fossils, DNA
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How do embryos help scientists determine evolutionary relationships? | Scientists study early developmental stages to see if they are similar (gill pouches in humans, turtles, salamanders and fish)
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What is a analogous structure? | Different structure, same function (bird wing vs. butterfly wing)
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What is a vestigial structure? | Structure with no purpose in organisms survival (human appendix)
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What is embryology? | The study of embryos
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Some species of snakes have hip bones, what structure is this known as? | Vestigial structure
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Are all mutations deadly? | No
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What does evolution lead to? | Diversity or variety of species
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Does evolution happen over a long or short period of time? | Long period of time
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What is required for organisms to in the same species? | Similar characteristics as well as be able to mate and reproduce
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What type of adaptation is a black widows ability to inject its prey with venom? | Physiological
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What type of adaptation explains cacti having spines to protect them from predators? | Structural
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