Examlex
Find the vertex, focus, and directrix of the parabola. Graph the equation.
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Vertebrates
Animals with a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.
Invertebrates
Organisms without a vertebral column, including animals like insects, mollusks, and crustaceans.
Complex Adaptations
Traits or features that have evolved through many incremental steps to solve specific problems and improve the survival and reproduction of an organism.
Fitness Advantages
Traits or behaviors that increase an individual's reproductive success and chances of survival in a particular environment.
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