Homeostasis Lesson 1

What is the role of the receptor in the stimulus-response model?

• Execution of responses by effectors

• Generation of appropriate responses

• Conversion of stimuli into signals

• Detection of external stimuli

Which main systems are involved in maintaining homeostasis?

• Circulatory and excretory systems

• Muscular and skeletal systems

• Nervous and endocrine

• Nervous and respiratory

What are the types of feedback mechanisms in homeostasis?

• Internal and external feedback

• Direct and indirect feedback

• Positive and negative feedback

• Primary and secondary feedback

What is the aim of the stimulus-response model?

• To balance internal stimuli and organism responses

• To stimulate the body's internal state to respond to external changes (maintain homeostasis)

• To co-ordinate internal stimuli and cellular responses (reverse honeostasis)

• To reverse external stimuli and cellular responses

What is homeostasis?

• The ability of an organism to maintain a stable internal environment

• The ability of an organism to reproduce efficiently

• The ability of an organism to grow rapidly

• The ability of an organism to adapt to changing external conditions

How does the body regulate its temperature when the external temperature increases?

• By decreasing heart rate

• By sweating

• By increasing heart rate

• By shivering