Biodiversity Flashcards
Hierarchical system
Domain, kingdom, phylum, class, order, family, genus species
Binomial names
Macropus (Genus most be capitalized and must come first) rufus (species must be lowercase and must come second and always to in italics)
Three levels of biodiversity
Genetic biodiversity- All the genes in a gene pool (variations).
Species biodiversity-The number of species that are present in an ecosystem (variations)
Ecosystem biodiversity- The number of different types of ecosystems that are present (Variations)
Purpose of classification
Scientific communications are more accurate, as well as the analysis of organisms and their interactions and relationships with other species
what is the binomial system?
The binomial systems uses two names, the first being the genus, and the second is the species.
Examples of binomial names
Humans- Homo sapiens
Red Kangaroo- Macropus rufus
How could the binomial naming system help biologists to understand that one area of land has high diversity then another?
The more species that are different within an area the higher the biodiversity.
They binomial name helps with classification to determine the biodiversity of an area.
The more genera within an are the higher the biodiversity.
What does the term ‘dichotomous key’ mean and how is it used by scientists?
A dichotomous key is a key that offers two opposite choices of a trait or a characteristics of an organism. Each of the statements led to another set of two statements. This process is continued until the final classification is determined
Scientists use this to determine an organisms taxonomic group or particular species.
Biological species concept?
A group of organisms, these organisms can interbreed in the natural environment, and they can produce fertile/viable offspring
Identify the form and process through which carbon dioxide enters the food chain.
Carbon enters in the form of carbon dioxide through the process of photosynthesis.
What is the role of cellular respiration following the processes in the carbon cycling
Carbon is released from the organisms body where it is stored into the atmosphere as CO2
what is the role of Decomposition following the processes in the carbon cycling.
carbon rich molecules in the dead organisms body are released into the atmosphere as CO2 (Anerobic > methane)
What are two ways humans have increased carbon levels within the atmosphere
Humans have increased the rate of land clearing cause less trees/ perennial plants are present on earth to act as a carbon store.
Increased burning of fossil fuels, leading to less carbon is stored as oil, gas, and coal.
How does more carbon in the atmosphere enhance the greenhouse effect?
More carbon in the atmosphere in the form of CO2 and CH4.
Leads to increased of the trapped heat in the atmosphere.
Less infrared radiation is emitted than is absorbed.
The overall result is that earth experiences increased global warming.
One way that in which our government or communities can help to reduce the release of excess carbon into our atmosphere each year.
invest more money in renewable energy technologies
This will reduce our future reliance on fossil fuels and reduce carbon emissions.
