Groups
What is an Organism
A single living thing
What is speciation?
When one species somehow breaks into two or more separate species.
All members of a species die
Upper layers of rock are usually yonger
What is the law of superposition
Organisms that take energy from the environment directly.
What are producers?
What is a population
All the members of a single species in a particular area
When a species changes due to environmental pressure, that is called
Natural Selection or Adaption
Species that only live in a very small area
What are Endemic Species?
A fault or a volcanic intrusion (lava) will be younger than the rock it is in.
What is the law of cross-cutting relationships?
Organisms that eat the organisms that take energy directly from the environment
What Are First Level Consumers
What is a species?
Organisms that can and do breed together to produce viable offspring
What are the three responses to environmental pressure
Adaption, Migration, & Extinction
The normal number of species that go extinct in a year
What is the Background Extinction Rate
Sediments are originally laid down in mostly flat layers
What is the principle of original horizontality?
The ecosystem collapses when this class of organism is removed
What is a keystone species?
What is a community?
All the organisms living in a particular area
Artificial Selection
When significantly more species go extinct than normal
What is a mass extinction
What is the principle of faunal succession?
What is 10%
What is a biome?
A particular assemblage of organisms and their environment.
GMO stands for
Genetically Modified Organism
An increase in biodiversity
What is the law of included fragments?
Organisms that move through multiple biomes/areas.
What is an umbrella species