Nutrients
Matter that organisms require for life process, circulate throughout the environment in biogeochemical cycles
What are primary producers
They are organisms that produce their own food by using the suns energy along with CO2 to produce carbon hydrates
What happened in photosynthesis
Producers pull CO2 out of their environment and combine it with H2O in the presence of sunlight
The process plants use to converts sun energy to chemical energy
Consumers
They are organisms, mainly animals, that must eat other organisms to obtain nutrients
Decomposers
They are organisms such as bacteria and fungi that break down wastes and dead organisms
Micronutrients
Essential vitamins and minerals that the body needs in small amounts to function properly, grow and stay healthy
Reactants
Carbon dioxide+water+sunlight
Products
Oxygen+carbohydrates (glucose)
Biogeochemical cycles
biogeochemical cycle is the path of a chemical element or molecule as it moves through the living and non-living parts of the Earth’s environment
Nitrogen cycle steps
Nitrogen fixation-nitrogen gas-ammonia
Nitrogen cycle occurs through
Bacteria, lightning, industrial processes
Plants involved in the nitrogen cycle
Legumes
Eutrophication
Too many nutrients make the water to rich (in nitrogen and phosphorus) causing algae to explode in growth wich suffocates aquatic life
Hypoxia
Hypoxia is when your body or a specific part of it doesn’t get enough oxygen to function properly, affecting cells and tissues
Extinction and factors that lead to extinction
Habitat loss invasive species and pollution
Effects on high density
Easier to find mates, more competition, higher disease spread
Immigration
Act of coming into a new country to live permanently
Emigration
Act of leaving one’s own country to settle in another
Migration
Seasonal movements in and out of a region
Natality
Rate at which new individuals are born in a population
Population growth formula
(Birth+immigration)-(death+emigration)
Positive growth
Births + immigration > deaths + emigration
Population growth rate expressed as
Change in population size
Exponential growth
Grows faster and faster over time creating J curve
