Science Chapter 7 Crossword
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
 
 
Down: 1) the usual major subdivision of a family or subfamily in the classification of organisms, usually consisting of more than one species.2) the process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater numbers than others of their kind, thus ensuring the perpetuation of those favorable traits in succeeding generations.3) covering of a fossil4) the diagram that shows relaiives from a species5) homologous may refer to two anatomical structures or behavioral traits within different organisms.7) any alteration in the structure or function of an organism or any of its parts that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.11) a system of nomenclature in which each species is given a unique name that consists of a generic and a specific term.13) any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops, characteristic of all organisms in the kingdom Monera, as the bacteria and blue-green algae.17) the assignment of organisms to groups within a system of categories distinguished by structure, origin, etc. The usual series of categories is phylum (or, especially in botany, division ), class, order, family, genus, species, and variety.19) natural environment of an organism; place that is natural for the life and growth of an organism: a tropical habitat. Across: 6) a tenet in evolutionary theory maintaining that species evolve slowly and continuously over long p Puncuated Equbliaeriods of geological time.8) the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another species.9) Equblia that is puncuated10) a marked deviation from the typical form or function.12) the science dealing with the description, identification, naming, and classification of organisms.13) a fossil covered by minerals and organisms14) the science of the forms of life existing in former geologic periods, as represented by their fossils.15) when no more of the organism is being made and the rest are being killed16) what some species have in common18) a theory that explains scientific observations; "scientific theories must be falsifiable"20) any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes, and an elaborate system of division by mitosis or meiosis, characteristic of all life forms except bacteria, blue-green algae, and other primitive microorganisms.21) the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another species.22) The investigation and comparison of the structures of different animals.23) change in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and genetic drift.24) Any of various fungi that often form a fuzzy growth (called a mycelium ) on the surface of organic matter. Some molds cause food to spoil, but others are beneficial, such as those used to make certain cheeses and those from which antibiotics like penicillin are developed. The molds do not form a distinct phylogenetic grouping but belong to various phyla including the ascomycetes and the zygomycetes.
 

 

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