2.1 Flashcards
Intro to Populations
What is the definition of biology?
Group of individuals that are the same species, same area at the same time. This means they rely on the same resources and interbreeding.
What are the 3 factors that affect the population?
Abiotic, Biotic, and Intrinsic Factor
What are the ways to count populations?
Direct Count, Indirect Count, Random Sampling, and Mark and Recapture.
What is the ratio of random sampling?
of organisms in sample/area of sample = total # of organisms/total area
What is the ratio of Mark and recapture?
total marked/total organisms = recaptured w/ marks/recaptured organisms.
What is the difference between population density and distribution?
Density is the amount of animal/land and distribution is how they are distributed.
What are the 3 distributions?
Uniformed, Clumped, and Random.
What is the ratio for density/size?
The number of indv./Area or volume = number of individuals given/1 square mile.
