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Science Test 2

Define Demography: The statistical study of populations and how they will change in the future.
Define Population: The number of individuals in a specific area
Density of a Population: Amount of organisms per unit area or unit volume
Size of a Population: Number of individuals in an area
Dispersion of a Population: Describes their spacing relative to each other
Define Immigration: Movement of individuals into a population
Define Emigration: Movement of individuals out of a population
Three Types of Dispersion: Uniform, Clumped, and Random
How is Growth Rate Calculated? Birth Rate minus Death Rate
Define Limiting Factor: Any biotic or abiotic factor that restricts the existence of organisms in a specific environment
List 3 Examples of Limiting Factors: Water, Food, and Temperature
Define Carrying Capacity: Maximum population size that can be supported by the available resources
What type of growth is an S-Shaped curve? Logistic Growth
What type of growth is an J-Shaped Curve? Exponential Growth
What does a straight line represent on a graph regarding population? Equilibruim; Carrying Capacity
What are the two forms of life strategists? R and K Strategists
Name 5 Characterstics of R Statagists: Short life span, Small body size, Reproduce quickly, Have many young, and Little parental care
Name 5 Characterstics of K Strategists: Long life span, Large body size, Reproduce slowly, Have few young, and Provide parental care
Define Trend: Patterns based upon observations
Define Mean: Average of all totals
Define Mode: The most common number in a data set
Define Median: The center number in a data set
Define Minimum: The lowest number in a data set
Define Maximun: The highest number in a data set
Define Sum: The total of all the numbers in a data set
Define Range: The lowest total subracted from the lowest total?
Define Trendline: The line used through an R squared equation that shows how accurate data is.
What is one of the most important thing to include when describing trend? Evidence (Numbers)
Created by: 16esmith



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