ENVIRONMENTAL PRESSURES

POPULATION

• A group of organisms of the same species living in the same area at the same time
• The population will keep growing if there is no pressures

PREDATION

• Organisms do this to survive
• The hunting and consuming of another organism

COMPETITION

• The struggle for a limited resource
• Could be food, land, or shelter

CATASTROPHIC EVENTS

• A signifigant event that negatively impacts an area of organisms
• Could be earthquakes, tsunamis, or fires

DISEASE

• An illness that can harm or kill an organism
• Can possibly be passed along to other organisms