| A | B |
|---|
| extinction | all the members of a species die |
| natural selection | unequal survival & reproduction that results from the presence or absence of particular traits |
| adaptation | thick fur keeps deer warm in cold environments |
| mutations | random genetic changes |
| speciation | one segment of a population |
| resistance | ability of 1 or more organisms to tolerate a particular chem. designed to kill it |
| evolution | change in the genetic characteristics of a population from one generation to the next |
| coevolution | two or more organisms evolve in response to each other |
| artificial selection | humans breed corn with specific characteristics |
| species | group of organisms that are closely related and that can mate to produce fertile offspring |
| Organisms are more likely to survive because: | they have certain phys. traits, or lack them, or engage in certain behaviors |
| An organism is resistant to a chemical if it: | has a gene that protects it from the chemical |
| Two species changing genetically in response to long-term interactions w/each other is: | coevolution |
| "If you don't reproduce..." | "You don't count" |
| Over prescribing of antibiotics results in: | not all diseases are bacterial, and overprescribing results in resistant bacteria |
| What is selection pressure? | an environmental factor that pushes evolution in a certain direction (allows certain species to survive better than others) |
| Four processes that can cause changes in a pop. (Hardy-Weinburg) | genetic drift, nat. selection, mutation, non-random mating |
| punctuated equilibrium | short burst of change followed by long plateau of little change (repeated) |
| coelacanth | had ball/socket joints, missing link between land animals and fish |
| rabbits developing thicker fur in colder climates is: | environmental change that lead to an adaptation |
