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Answer Key
Grade 7 Science: Body Systems — Feedback & Homeostasis Intro
1.
Homeostasis
2.
stimulus
3.
adjust/return to balance
4.
Negative
5.
systems
6.
nervous
7.
circulatory/endocrine link
8.
exercise/heat
9.
process of keeping stable internal conditions in the body
10.
a change in the environment or body that triggers a response
11.
response opposes change; e.g. sweating when hot lowers temperature
12.
nervous signals increase heart rate; blood delivers more oxygen to muscles
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