What is homeostasis?

• A state of equilibrium in the body's internal environment

• A process of rapid change in the body

• A state of constant external environment

• A mechanism to increase body temperature

Tags

NGSS.HS-LS1-3

Which of the following is an example of positive feedback?

• Sweating to cool down the body

• Childbirth contractions

• Thermostat maintaining room temperature

• Regulation of blood glucose levels

Tags

NGSS.HS-LS1-3

What hormone is involved in the positive feedback mechanism during childbirth?

• Adrenaline

• Oxytocin

• Cortisol

• Insulin

Tags

NGSS.HS-LS1-3

Why is positive feedback not sustainable in most situations?

• It results in a continuous increase in reaction intensity

• It causes reactions to become weaker over time

• It leads to a decrease in body temperature

• It disrupts the body's equilibrium

Tags

NGSS.HS-LS1-3

What is the most common type of homeostasis mechanism?

• Negative feedback

• Static feedback

• Neutral feedback

• Positive feedback

Tags

NGSS.HS-LS1-3

In the thermostat analogy for negative feedback, what happens when the temperature goes above the set point?

• The heater turns on

• The air conditioner turns on

• The thermostat turns off

• The temperature continues to rise

Tags

NGSS.HS-LS1-3

What is the optimal state of health according to the video?

• Absence of disease

• Optimal physical, mental, and social well-being

• High physical fitness

• Strong mental health

Which aspect of health involves having good blood pressure and heart function?

• Emotional health

• Social well-being

• Mental health

• Physical health

Why is social well-being important for overall health?

• It provides a support group and social interactions

• It reduces the need for medical care

• It ensures high physical fitness

• It improves mental health

What does the definition of health emphasize beyond the absence of disease?

• High energy levels

• Low stress levels

• Strong immune system

• Optimal state of physical, mental, and social well-being