Ecosystems
Biotic factor and Abiotic Factor
Biotic: Any Living Thing
Abiotic: Any Nonliving Thing
A relationship where one organism benefits and the other organism is unharmed
Commensalism
Google Slide #4
Bobcat, Alligator, Catfish
An increase average temperatures on Earth's surface are caused by...
An increase in Carbon Concentrations
Google Slide #6
False
One example of an autotroph and One example of a heterotroph.
Autotroph: Plants
Heterotroph: Animals, insects, bacteria, fungi
Google Slide #2
Exponential Growth
Direction energy flows through a food chain
From Producer to Primary Consumer to Secondary Consumer to Tertiary Consumer in one direction
Google Slide #1
Photosynthesis
A Density Dependent Factor Example
Predation, Disease, Limiting Resources, Competition
The trophic level that involves organisms taking in energy to assemble sugar
Producers
Google Slide #3
Carrying Capacity
Draw a food chain:
Raccoon eats rabbit
Wolf eats raccoon
Rabbit eats grass
Grass --> Rabbit --> Raccoon --> Wolf
This allows the ecosystem to withstand environmental changes
Humans and several types of bacteria. Bacteria live on the skin and in the gut and provide humans protection from pathogens and nutrients. The bacteria gain food, shelter, and optimal environmental conditions.
Mutualism
Factors found in an Ecosystem
biotic and abiotic factors
A wildfire spreads across Southern California. The wildfire burns trees and eliminates food sources and home and shelter for a large number of plants and animals. As a result of the wildfire, the carrying capacity of Southern California is temporarily reduced for many of the native species. Wildfire is THIS limiting factor.
Density-independent limiting factor (population size and density do not alter the storms effect)
bush --> deer --> Fox --> coyote
The % Energy that the fox gains from the deer
1%
Possible effects invasive species have on the carrying capacity of native organisms in the ecosystem
The carrying capacity may decrease because there is more competition for limited resources
Effects to the Earth if the greenhouse effect didn't exist
It would be too cold for humans to survive on the Earth
The direct source of energy for all consumers
Producers and/or consumers
When an organism's carrying capacity reaches zero in every ecosystem on earth
Extinction
Google slide #5
Grasses would increase
Frogs and Birds population will decrease
What is the function of autotrophs in the carbon cycle?
To use carbon dioxide to produce glucose
Google Slide #7
As Prey increases, so does the Predator.
The increase in Predators causes the Prey to decrease, Prey decreasing causes the Predator to decrease.
The Predator decreasing in turn allows the Prey to increase and the cycle starts again.