HABITAT

• the natural environment of an organism
• Ex: fish in a pond

BIOSPHERE

• The biosphere is the global sum of all ecosystems.
• It can also be termed the zone of life on Earth

BIOTIC POTENTIAL

• Biotic potential is the maximum reproductive capacity
• of a population under optimum environmental conditions.

NICHE

ECOLOGICAL SUCCESSION

• Ecological succession is the observed process of change in the
• species structure of an ecological community over time

MIMICRY

BIOGEOCHEMICAL CYCLE

• is a pathway by which a chemical substance moves
• through both biotic (biosphere) and abiotic (lithosphere, atmosphere,
• and hydrosphere) compartments of Earth.

ECOLOGICAL PYRAMID

• is a graphical representation designed
• to show the biomass or biomass productivity at each
• trophic level in a given ecosystem.

TROPHIC LEVELS

• of an organism is the position it occupies in a food chain.