keeping the homeostasis
of the internal environment depends on the ()
A: Non-automatic
control system
B: Negative
feedback control system
C: positive
feedback control system
D: Feed-forward
control system
E: nervous
and endocrine regulation.
of the internal environment depends on the ()
A: Non-automatic
control system
B: Negative
feedback control system
C: positive
feedback control system
D: Feed-forward
control system
E: nervous
and endocrine regulation.
举一反三
- The nervous system can be devided into the central nervous system and<br/>the ( ) A: brain B: spinal<br/>cord C: peripheral<br/>nervous system D: endocrine<br/>system
- Closed-loop control system is an automatic control system. Open-loop control system is not an automatic control system.
- Once<br/>labor begins in childbirth, contractions increase in intensity and<br/>frequency until delivery. The increasing labor contractions of<br/>childbirth are an example of ( ) A: A<br/>bioinformatic system B: Positive<br/>feedback C: Negative<br/>feedback D: Feedback<br/>inhibition E: Both<br/>C and D
- If the steady-state error of unity feedback control system to a ramp input is constant, then the system is a type system A: 0 B: I C: II D: III
- The steering system is used to control the((___________))of<br/>a vehicle’s motion. A: turning B: direction C: speed D: brake