Benchmark 6C
The Human Organism: Basic Functions
Grades K-2, page 136

Senses can warn individuals about danger; muscles help them to fight, hide, or get out of danger.

NSES Content Standard C 
Life Science: The characteristics of organisms
Grades K-4, page 129
The behavior of individual organisms is influenced by internal cues (such as hunger) and by external cues (such as a change in the environment). Humans and other organisms have senses that help them detect internal and external cues.