Biomes

Study guide
Biology
Is the science of life; examines how living things interact, how systems function, and how they function at a molecular level.
Bio- prefix; form the Greek word bios, meaninglife.
-logy suffix; from the Greek word logos, meaning study.
Biologists are the people who study biology, they make discoveries and seek explanations by performing laboratory and fieldinvestigations.
They also:
• Study the diversity of life.
• Research diseases
• Develop technologies
• Improve agriculture
• Preserve the environment

Ecology
The scientific discipline in which therelationships among living organisms.
Levels of organization
Organisms
Population
Biological community
Ecosystem
Biome
Biosphere
Biosphere
The portion of Earth that supports life.
Types oforganisms
Abiotic factors: Non-living factors in the environment.
Biotic factors: Everything that is alive in the environment.
Food Chain
A simple model that shows how energy flows through an ecosystem.Food web
Is a model representing the many interconnected food chains and pathways in which energy flows through a group of organisms.
Flowing of energy in the biosphere
Auto-trophs: Organism thatobtain energy from the sun.
Hetero-trophs: Organism that obtain energy from other organisms.

Herbivores: Plants Omnivores: Plants and animals Carnivores: Other animals
Detririvores: Deadorganisms.
Biogeochemical cycles
Water cycle
Precipitation: Condensed water vapor that falls to Earth’s surface.
Condensation: Transformation of water vapor to liquid water droplets in the air.Evaporation: Transformation of liquid to gas.
Nitrogen Cycle
Nitrogen is found in proteins.
• The largest concentration of nitrogen is found on the atmosphere.
• Nitrogen gas is captured from the airby species of bacteria that live in water, the soil, or grow on the roots of some plants, the process capture and conversion of nitrogen into a form that is useable by plants is called nitrogen...