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8Sci_Evolution
Evolution (Mayfield)
| Question | Answer |
|---|---|
| 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 |
| What is the human appendix an example of? | Vestigial structure |
| What is genotype? | Genes |
| What is phenotype? | Physical characteristics |
| How is genotype related to phenotype? | Genotype directly affects phenotype |
| What is natural selection? | Survival of the fittest |
| 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. |
| What are the 3 main types of adaptations? | Physiological, Structural, Behavioral |
| What does the physiological adaptation mean? | How the body works (venom) |
| What does the structural adaptation mean? | Shape of the body (giraffe neck) |
| What does the behavior adaptation mean? | How an organism behaves (bird building a nest) |
| What is a homologous structure? | Same structure, not necessarily the same function (cat and human arm) |
| What are adaptations? | Traits that help organisms survive in a given environment |
| What type of adaptation allows you to regulate body temperature? | Physiological |
| What can scientists use to determine the evolutionary relationship between two species? | Bone structure, fossils, DNA |
| 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) |
| What is a analogous structure? | Different structure, same function (bird wing vs. butterfly wing) |
| What is a vestigial structure? | Structure with no purpose in organisms survival (human appendix) |
| What is embryology? | The study of embryos |
| Some species of snakes have hip bones, what structure is this known as? | Vestigial structure |
| Are all mutations deadly? | No |
| What does evolution lead to? | Diversity or variety of species |
| Does evolution happen over a long or short period of time? | Long period of time |
| What is required for organisms to in the same species? | Similar characteristics as well as be able to mate and reproduce |
| What type of adaptation is a black widows ability to inject its prey with venom? | Physiological |
| What type of adaptation explains cacti having spines to protect them from predators? | Structural |
Created by:
masonteach
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