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100
process by which sediment and other materials are moved from one place to another
Erosion
100
Threadlike structure
Chromosome
100
Naturally occurring differences in traits are what?
Variation
100
Simple push or pull is called ______.
Force
100
The practice by which humans select plants or animals for breeding based on desired traits is what?
Artificial selection
200
Place where land and a body of water meet
Shoreline
200
The life cycle of a eukaryotic cell is called what?
Cell cycle
200
___ ___ form when small creatures are trapped in tree sap and the sap hardens
Amber fossils
200
Strength of force depends on what?
The masses involved and distance between them
200
Special class of materials that conducts electric charge better than electrical insulators are called______.
What is semiconductor
300
Thick deposits of this windblown, fine-grained sediment are known as ___
Loess
300
Cells that contain half the usual number of chromosomes are known are known as ___
Haploid
300
What supports the theory that populations change over time? (4)
Structural data, DNA, developmental patterns, and fossils
300
Material through which charge cannot move easily is called _____.
Electric insulator
300
What is the standard method used to divide Earth's long 4.6 billion year natural history into manageable parts?
Geologic time scale
400
Every fifth line is an ___, a thicker contour line that often has an elevation label
Index contour
400
What are the advantages of asexual reproduction? (4)
-quick -identical to parent -no partner -any gender
400
The transition between two groups of organisms may not be well understood. Fossils that help fill in these gaps are called______.
Transitional fossils
400
In materials such as iron, nickel, and colbalt, groups of atoms form tiny areas called what?
Domain
400
Contour lines link points that are of equal ___
Elevation
500
What is the difference between the highest and lowest elevations in a particular area?
Refief
500
Different versions of a gene are known as what?
Alleles
500
What are the parts of the geological time scale? (4)
Eons, eras, periods, epochs
500
A divice that measures the strength and direction of an electric current in a wire is called ______.
Galvanometer
500
A graphic used to predict the possible genotypes of offspring in a given cross is a ___ ___
Punnett Square