Biosphere
All life on earth and all parts on earth
8 meters above earth surface
11 meters down below earths water surface
Ecology
Study of organisms and between organisms and their physical environment
Biotic and abiotic factors
Abiotic- nonliving things
Biotic- biological influences on organisms
Ecologists use 3 methods for their work
Observation
Experimentation
Modeling
Autotrophs (primary producers)
Use solar and chemical energy to produce food
Photosynthesis
Capture light energy be uses it to power chemical reactions that convert carbon dioxide into oxygen and carbohydrates
Chemosynthesis
Chemical energy is used to produce carbohydrates
Heterotrophs( consumers
Get energy by eating organisms