Photo AI
An experiment was conducted to determine the effects on body function of increasing ambient temperature - HSC - SSCE Biology - Question 24 - 2009 - Paper 1
Question 24
An experiment was conducted to determine the effects on body function of increasing ambient temperature. Participants (100 individuals) were asked to lie down and re... show full transcript
Worked Solution & Example Answer:An experiment was conducted to determine the effects on body function of increasing ambient temperature - HSC - SSCE Biology - Question 24 - 2009 - Paper 1
Step 1
Identify the dependent and independent variables in this experiment.
Answer
The dependent variable in this experiment is the sweating and heart rate of the participants, as these are the effects being measured in response to changes in temperature. The independent variable is the ambient temperature of the room, as it is the factor being manipulated to observe its impact on the participants.
Step 2
Identify the body system that monitors and responds to changes in external temperature.
Answer
The body system that monitors and responds to changes in external temperature is the thermoregulatory system, which involves the hypothalamus in the brain and various effectors such as sweat glands and blood vessels.