Ecology Flashcards
Define
Population
The amount of species in one are at one point in time
Define
Species
A specific type of organism
Define
Dispersion
How organisms spread out
Define natality
Number of births in an ecosystem
Define
Mortality
Number of deaths in an ecosystem
Define
Carrying capacity
Number of organisms that an area can support
Define
Gene flow
Spread of genes to different areas
Define
Growth rate
Comparison of births and deaths
Define
Genetic drift
Isolated populations develop different traits
Define
Natural selections
Nature decides which traits are favorable
Give an example that is a representation of population
Population of freshman in mr.aldrich’s 3rd period biology
What is the movement in alleles into and out of a population called
Gene flow
How does natural selection shape populations
Changes alleles and traits
The population size that can be sustained by an environment over time is the
Carrying capacity
Which tropic level does the grass fill
Producer
Which tropic level does the mouse fill
Secondary consumer- carnivore
Which level in the energy pyramid does the fox fill
Top consumer
Which level in the energy pyramid does the grasshopper fill
Primary consumer