Organization of Life
Energy Transfer
Trophic Levels
Modeling Population Size
Measuring Population Size
100
What is the lowest level of environmental organization?
(Hint: a penguin)
organism
100
A food web shows energy connections better than a food _______.
Chain
100
An organism that only eat plants.
Herbivore
100
If I measure the _____ I am measuring the total number of individuals in a population.
Abundance.
100
What is the subfield of ecology that studies how populations interact with the environment?
Population ecology
200
What word describes a community of organisms AND their environment?
Ecosystem
200
Living things that make their own food from sunlight are known as ________.
Producers or autotrophs
200
An organism that eats both plants and animals.
Omnivore
200
This graph shows _______ growth. 
Logistic
200
A population can increase by ___________ and ___________ .
Births and immigration
300
This is the part of Earth where ALL life exists.
Biosphere
300
The following is an example of a:
Food CHAIN
300
A spider that feeds on a live insect is an example of...
carnivore
300
The following equation is used to calculate what?
X= number of individuals/ unit area
Density
300
Organisms can be removed from a population through _________ and _______.
Deaths and emigration
400
A _________________ is several species of animals interacting, while a population is a members of one species in the same area.
Community
400
In a food web, arrows point in one direction. This is to show how energy moves. How do the arrows point?
The arrows point at the animal that is EATING!
400
An organism that breaks down organic matter, recycling nutrients back into the environment
Decomposer
400
A constant number of individuals are being added over time in which growth curve?
Linear
400
What is the best way to estimate a population of immobile flowers in a field?
Quadrat sampling
500
The five levels of organization in the environment from smallest level to largest are.....
Organism
Population
Community
Ecosystem
Biosphere
500
In this food web, the rabbit is what kind of consumer?
Primary
500
What word describes all of the living organisms found at each of the ecological trophic levels.
Biotic.
500
In which growth curve is the growth rate increasing over time.
Exponential
500
What is the best way to estimate a population of snails in the intertidal zone OVER TIME.
Mark and recapture