Biodiversity
What is genetic biodiversity?
The variation of DNA and genes with in a species or population?
What are four characteristics that define a biome?
temperature, soil, amount of water, amount of light
What is a species?
a population of organisms that can interbreed and reproduce under natural conditions
What is ecology?
The scientific study of interactions between organisms and their environment
What’s the troposphere?
the layer closest to the earth
What are the three main types of biodiversity?
species, genetic and ecological
What is albedo?
Albedo is a measure of the reflectivity of a surface
What types of protection is offered by the endangered species act of 1973?
offers trade restrictions
What are biotic factors?
living organisms that inhabit an environment
What is stratosphere?
the layer above troposphere, contains the ozone layer
What does a biodiversity index tell scientist?
how many species exist in a certain environment
What do climatograms provide?
They provide the temperature and rainfall for an area and can identity biomes
What are some factors that can cause extinction?
natural events, pollution, overexploitation, disease
What’s a niche?
the unique role species plays in the environment
What is mesosphere?
the middle layer, meteors burn here
What does a higher biodiversity index represent?
greater diversity
What’s a tundra?
a cold, treeless, ground permanently frozen biome
What is a gene pool?
The combined genetic information for a particular population of organisms
What’s a fundamental niche?
the role an organism can occupy without competition
What is the thermosphere?
the layer after the mesosphere
What can help give a more complete picture of biodiversity in an area?
completing several transects
What do climatograms show?
Change in the climate over time and can be used to show the effects of human activity on the climate
What is speciation?
if the gene pool of two populations are separated and cannot be shared through reproduction, the populations may develop into a new species
What is tolerance?
the ability of an organism to survive in changing condition, such as temperature
What is the outer edge?
the layer after the thermosphere