What is biological evolution and name a mechanism for biologic evolution.
The process whereby the earth’s life changes over time through changes in genes of populations of organisms. One mechanism is natural selection.
100
give an example of a biome
forests, desserts, etc.
100
What is resource partitioning
It is when species compete for similarly scarce resources.
100
What is carrying capacity
the number of people, other living organisms, or crops that a region can support without environmental degradation
200
What is functional Diversity?
functional diversity is the biological and chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems.
200
What is natural selection and give an example.
where individuals with certain traits are more likely to survive and reproduce. an example would be moth coloration
200
How do humans affect biodiversity--give 2 examples. Can humans ever INCREASE biodiversity?
Habitat Destruction & Hunting, genetic diversity, species transfer,
200
What is the difference between an adaptation and an evolution?
Adaptation generally refers to change that leads organisms to be suited to their local circumstances in some way, while evolution typically refers to changes in genes.
200
Name one method of estimating the number of species in an area.
Find how many exist in a small block by tagging and multiply it out or use the capture and re capture method
300
What is the difference between a community and a population?
community- includes more than one species
300
Describe the process of Speciation.
Different selective pressures lead to different species over thousands of years.
300
What are two classifications of biomes and give examples of those biomes.
terrestial and aquatic, and these include the types of biomes known as deserts, forests, grasslands, savannas, tundra, and freshwater environments
300
Name 4 of the 5 ways species interact with each other.
In order to determine snail populations, 340 snails were captured, tagged, and released.
Later, 420 snails were captured. Of the 420 snails, 16 were already marked. What is the
size of the snail population?
8925
400
What does biodiversity indicate about an ecosystem? Why?
High DI= stable, sustainable ecosystem
400
Differentiate geographic isolation and reproductive isolation.
Geographic- land mass; reproductive- cannot interbreed anymore
400
What is an indicator species?
Species that serve as early warnings that a community or ecosystem is being degraded.
400
What is mutualism and give an example
the interaction that benefits both species. an example would be birds that ride on the backs of large animals
400
Name two examples of Evolution by Random Processes