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8 Sci Ch 8
8th Grade Science Chapter 8 Vocabulary
Question | Answer |
---|---|
SPECIES | A GROUP OF ORGANISMS WITH MEMBERS THAT REPRODUCE AMONG THEMSELVES IN NATURE. |
EVOLUTION | CHANGE IN HEREDITARY FEATURES OF A SPECIES OVER TIME. |
NATURAL SELECTION | ORGANISMS WITH TRAITS BEST SUITED TO THEIR ENVIRONMENT ARE MORE LIKELY TO SURVIVE AND REPRODUCE. |
VARIATION | AN INHERITED TRAIT THAT MAKES AN INDIVIDUAL DIFFERENT FROM OTHER MEMBERS OF THE SAME SPECIES. |
GRADUALISM | MODEL THAT DESCRIBES EVOLUTION AS A SLOW CHANGE OF ONE SPECIES TO ANOTHER SPECIES. |
PUNCTUATED EQUILIBRIUM | MODEL THAT SHOWS THAT RAPID EVOLUTION CAN COME ABOUT BY THE MUTATION OF JUST A FEW GENES, RESULTING IN THE APPEARANCE OF A NEW SPECIES. |
HOMOLOGOUS | BODY PARTS THAT ARE SIMILAR IN ORIGIN AND STRUCTURE. |
VESTIGIAL STRUCTURE | BODY PART THAT DOESN'T SEEM TO HAVE A FUNCTION. |
EMBRYOLOGY | STUDY OF DEVELOPMENT IN ORGANISMS. |
DNA | THE MOLECULE THAT CONTROLS HEREDITY. |
PRIMATES | GROUP OF MAMMALS THAT INCLUDES MONKEYS, APES, AND HUMANS. |
HOMINIDS | HUMAN-LIKE PRIMATES THAT ATE BOTH MEAT AND VEGETABLES AND WALKED UPRIGHT ON TWO FEET. |
HOMO SAPIENS | OUR SPECIES, MEANING "WISE HUMAN". |