Homeostasis

Which of the following is an example of positive feedback?

• Thermoregulation

• Blood Pressure

• Childbirth

• Blood Sugar Levels

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Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

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When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

• Positive Feedback Response
• Negative Feedback Loop 

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NGSS.HS-LS1-3

Which body system controls the body to maintain homeostasis?

• excretory

• nervous

• circulatory

• skeletal

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The maintenance of an organism’s internal environment is called:

• compensating
• homeostasis
• balancing
• routine

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The group of organisms that use the process of homeostasis includes

• mammals, only

• animals, only

• plants and animals

• all living things

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The tendency of an organism to maintain a balanced state in order to stay healthy.

• Stimuli
• Response
• Tropism
• Homestasis

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a body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.

• endocrine system 
• nervous system
• nerve
• neuron

a body system that controls growth and homeostasis by secreting hormones from glands.

• skeletal system
• nervous system
• endocrine sytem
• integumentary system

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NGSS.HS-LS1-3

organ of the endocrine system that secretes hormones.

• heart
• gland
• brain
• skin

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NGSS.HS-LS1-3