• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
What refers to the number of individuals per unit area?
Population Density
What factors affect population size?
Birthrate, deathrate, and the rate at wich an individual, enters or leaves the population
Under what conditions will a population grow exponentially?
Under ideal conditions with unlimited resources.
True/False, does bacteria have exponential growth?
True.
What is the first phase in Logistic growth?
Exponential Growth.
What is the maximum number of individuals of a particular species that a particular enviroment can support?
Carrying capacity.
The factor that controls the growth of a population?
Limiting Factor.
What do limiting factors determine?
The carrying capacity of an enviroment for a species.
What operates strongly only when population density reaches a certain level?
Density-dependent limiting factors.
What do Density-dependent factors include?
Predation, herbivory, parasitism, disease, and stressfrom overcrowding.
What affects all populations in similar ways, regardless of population size and density?
Density-independent limiting factors
What are some density-independent limiting factors?
Hurricanes, droughts, and floods, also wildfires.
As civilization advanced, life became easier, and the human population began to what?
Grow more rapidly.
A large part of ongoing human population growth is happining in only ten countries, with what two countries in the lead.
India and China.
Current projections suggest that by 2050, the world population will reach what?
9 Billion.