- Bicycling on the road - voluntary action
- Beating of the heart - involuntary but non-reflexive action
- Jumping when startled by a loud horn - reflexive action
- Blinking your eyes every few seconds - reflexive action controlled by the brain
Reflexive actions are the simple and fundamental movements. Those are automatic muscle responses to particular stimuli. Examples: removing the arm when it burns, moving the feet when it step tt a sharp object etc.
Voluntary actions are under the control of the brain which “orders” and sends information to motor cortex to perform the movement. Examples: arm and leg moving, doing any sport etc.
Involuntary actions are made without the intermediation of the brain. Examples: crying, blinking, breathing, heart beating etc.
D. scientists can easily tell which variable caused the results.
Good luck!
Okay so The most serious dangers of exposure to outer space are a lack of oxygen and ebullism. Ebullism is the formation of bubbles in body fluids due to a reduction in ambient pressure. The pressure in the vacuum of space is so low that the boiling point of the fluids in your body decreases below the body’s normal temperature (37oC), which results in the formation of gas bubbles in your fluids that can really mess you up. You’ll swell up pretty bad, perhaps even up to twice your normal size, but you won’t explode as your skin is very stretchy. Your blood will also not boil. You will, of course, be in an immense amount of pain and your blood circulation will be impeded. Therefore you will die in outer space due to no oxygen and the vacuum in space. Hope this answers your question.
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