Unit 3 Vocab - Investigating Plant Systems

Front

External stimulus

Back

a change outside an organism

Front

Force

Back

A push or pull that can change the position or motion of an object.

Front

Geotropism

Back

Growth in response to gravity, e.g., downward growth of plant roots.

Front

Homeostasis

Back

the body's ability to keep internal balance

Front

Internal Stimulus

Back

a change within the organism

Front

Phototropism

Back

Growth in response to light.

Front

Root system

Back

Below-ground part of a plant including roots, tubers, and rhizomes.

Front

shoot system

Back

above-ground part of a plant including leaves, buds, stems, flowers.

Front

Stimulus

Back

A thing or event that causes a response or reaction.

Front

Transpiration

Back

Process of water moving through plants and evaporating from leaves and stems.