Search 7,000+ topics

Practice problem

Respond to the Environment — Characteristics of Life

By Valeri Natole
+1 contributors
Contributors
Auxin molecules move toward wherever sunlight hits the plant. This causes the plant to bend in the direction of the light.

Auxin molecules move around in response to a light stimulus.

By MacKhayman (Own work) CC BY-SA 3.0, via Wikimedia Commons

Plants orient themselves toward a light stimulus. This is called phototropism. What characteristic of life does this best show?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems