QUESTIONS AND ANSWERS 100% CORRECT
◉ Which of the following is a population?
A. Lake Michigan
B. A human jogging in the street
C. Squirrels in Central Park
D. The benthic zone of an ocean. Answer: C. Squirrels in Central Park
◉ A branch of biology that deals with how populations change over time
and the factors that regulate them is. Answer: Population ecology
◉ Population psychologists use. Answer: 1. Statistics (Number and
distribution of individuals)
2. examine population dynamics (interaction between biotic and abiotic
factors)
◉ Important aspect of population dynamics. Answer: Population growth
◉ What is the relationship between population and a species. Answer: A
population is a localized group of individuals of a single species
, ◉ The population structure of a species is largely determined by two
factors. Identify and describe those two factors. Answer: 1. Population
density
2. Dispersion pattern
◉ population density. Answer: Number of individuals per unit area
◉ dispersion pattern. Answer: the way individuals are spaced within
their area (clumped, uniform, random)
◉ clumped dispersion pattern. Answer: a pattern in which the
individuals of a population are aggregated in patches (unequal
distribution)
Example: plants and fungi clump in areas where soil conditions and
other factors favorite germination and growth
◉ uniform dispersion pattern. Answer: a pattern in which the individuals
of a population are evenly distributed over an area
Example: some plants secrete chemicals, inhabiting germination and
growth of nearby plants