NGSS.HS-LS1-3

True or false:  Regulating what enters and leaves the cell helps the cell maintain homeostasis. 

• True
• False

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When you step out into the cold, your body shivers in order to keep its temperature at 98.6^oF.

• All living things use energy
• All living things contain cells
• All living things maintain homeostasis
• All living things grow and develop

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Sudoriferous Gland

• K

• L

• M

• N

• O

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The alternating expansion and relaxation of the artery wall caused by contraction of the left ventricle is

• blood pressure

• pulse

• blood reading

• palpitation

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thirst and hunger

• cerebellum

• brain stem

• hypothalamus

• hippocampus

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What is released by the pancreas when blood sugar is low?

• glucose
• glucagon
• insulin
• glycogen

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What is this type of feedback?

• positive
• negative
• infinity
• a figure 8

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What happens in the liver when the bloodstream has lower than usual glucose levels

• Glucose is converted to glycogen
• Glycogen is converted to glucose
• The liver keeps storing glycogen

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The two types of feedback systems that help organisms maintain homeostasis are:

• positive and negative 
• receptor and effector
• static and dynamic
• minor and major

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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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