Earth’s four spheres
The atmosphere
the lithosphere
The hydrosphere
The biosphere
Photosynthesis:
Producers can’t eat other organisms for food; they use the energy from the sun to join carbon dioxide and water together to make sugar and oxygen
Carbon dioxide + water + light energy 🠖 sugar + oxygen
Cellular respiration:
producers and consumers need to create energy from the food that they make/eat
Oxygen + sugar 🠖 carbon dioxide + water + energy (ATP)
ATP = adenosine triphosphate
Producers:
Consumers:
Producers: autotrophs
Consumers: heterotrophs
Food chains:
Food chains show the transfer of matter and energy from one organism to another
Food webs
show the interaction of multiple food chains
All living things need energy to:
- Grow
- Reproduce
- Respond to stimuli
- Maintain a stable internal environment
Abiotic:
the non-living parts of an environment
Biotic:
the living parts of an environment
Carrying capacity:
refers to the ability of the earth to support the needs of the world while remaining sustainable
Cellular Respiration:
A process where cells break down glucose using oxygen to create atp (adenosine triphosphate) animals, plants, fungi, bacteria ) It is crucial because it is how living cells convert food into atp, which is needed to power all life processes,
Biotic reasons for the shape of the graph:
- Competition for resources
- Diseases
- Migration
- Reproductive success
- Predation
Abiotic reasons for the shape of the graph:
- Climate change
- Natural disasters
- pollution/habitat alteration
- Availability of resources
Human impacts on the carbon cycle thats hurting:
burning of fossil fuels
Deforestation
Industrial processes
ocean acidification
Agriculture
Human impacts on the carbon cycle thats helping:
Reforestation
Sustainable agriculture
renewable energy
Reducing waste
Human impacts on the water cycle thats hurting:
Deforestation
Urbanization
climate change
dams/water diversion
Groundwater depletion
Helping
Restoring wetlands/forests
Sustainable agriculture
Green infrastructure
Improving sanitation/waste management
Succession:
a series of changes in an ecological community over time
Sustainability and why it is important:
the ability to be maintained at a certain level in an ecosystem so that it can survive.
It is important for ecosystems because ecosystems provide essential life support and is vital to preserve for future generations
Ecological grief
the grief felt in response to environmental losses, both natural and man-made
Impacts on indigenous communities by climate change
disrupts food/water sources, increasing waterborne/infectious diseases, damages infrastructure and land, and impacts mental health because of identity and culture loss
