If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Tags

NGSS.HS-LS1-3

Homeostasis in the human body is often maintained by a: 

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

Tags

NGSS.HS-LS1-3

The "cause" for something to happen is the

• response
• effect
• stimulus
• homeostasis

Tags

NGSS.MS-LS1-8

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

Tags

NGSS.HS-LS1-3

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

Tags

NGSS.HS-LS1-3

Salt water crocodiles bask in the sun for several hours every morning. which one of the following statements best describes the method of thermoregulation in salt water crocodiles?

• Endothermy, increase body temperature to increase rate of metabolism reactions in cells

• Ectothermy, decrease body temperature to increase rate of metabolic reactions in cells.

• Endothermy, decrease body temperature to increase rate of metabolic reactions in cells

• Ectothermy, increase body temperature to increase rate of metabolic reactions in cells

Tags

NGSS.HS-LS1-3

The graph above shows changes in body temperature of an endotherm with time.

Which one of the following accurately describes the regulatory mechanism shown in the graph?

• A - Negative feedback

• B - Positive feedback

• C - Thermoregulation

• Both A and C

Tags

NGSS.HS-LS1-3

Which best describes the stimulus-response model?

• Stimulus -> receptor -> effector -> control center -> response

• Stimulus -> receptor -> control centre -> effector -> response

• Stimulus -> effector -> control center -> receptor -> response

Tags

NGSS.MS-LS1-8

When blood glucose is high, the negative feedback mechanism is to produce which hormone?

• Glucagon

• Glycogen

• Insulin

• Basal Insulin

Tags

NGSS.HS-LS1-3