Science- Ecosystems

Ecosystem

A group of biotic and abiotic things interacting with each other.

Biome

A region of earth's surface and other particular combination of climate plants and animals that are found within it.

Biotic factors

include all living things eg. dog, cat, person, plant

Abiotic factors

include all non-living factors eg. temperature, light, intensity, wind speed, rainfall, Ph, salinity

Habitat

where a population of organisms live, provides food, water and shelter for organisms. eg. desert, coast, rainforest

Population

A group of living organisms, same species, same place at the same time.

Community

When different populations interact with each other.

Food Chain

Shows the transfer of energy from one producer to one tertiary consumer.

Food Web

A complex diagram representing the many energy pathways in an ecosystem

Producer

An organism that makes it's own food.

Consumer

An organism that obtains energy by eating other organisms

Trophic levels

The levels of organisms consuming one another

Autotroph

An organism that makes its own food

Heterotroph

Organism that obtains energy from the foods it consumes; also called a consumer. Cannot make it's own food.

Photosynthesis

The process of plants or algae converting light energy from the sun into chemical energy.

Chloroplast

An organelle found in plant cells where photosynthesis occurs

Chlorophyll

A green pigment found in the chloroplasts of plants

Glucose

A simple sugar that is an important source of energy.

Cellular respiration

the process of converting energy stored in glucose into the usable form of energy (ATP).

ATP

the useable form of energy converted during cellular respiration.

Mitochondria

Powerhouse of the cell, organelle that is the site of ATP (energy) production