homeostasis required practical

What does the nervous system enable humans to do?

• Improve their digestive system

• Increase their muscle mass

• Generate electrical energy

• React to their surroundings and coordinate their behaviour

What comprises millions of neurones and uses electrical impulses?

• The digestive system

• The muscular system

• The skeletal system

• The nervous system

What is a suitable investigation to determine the effect on human reaction times?

• The effect of sugar intake on blood pressure

• The effect of light intensity on pupil size

• The effect of caffeine or background noise on reaction times

• The effect of temperature on muscle flexibility

How is the ruler drop test conducted to measure reaction times?

• By dropping a ruler and measuring the distance it falls before being caught

• By measuring the time it takes for a person to start running after hearing a sound

• By observing the reaction of pupils to light exposure

• By calculating the speed of a person's response to a visual stimulus

What does a distance of 10 cm on the ruler correspond to in terms of reaction time?

• 50 ms

• 200 ms

• 140 ms

• 90 ms

What effect does noise have on the speed of reaction, according to the data provided?

• Decreases reaction speed

• Increases reaction speed

• Has no effect on reaction speed

• The data provided is inconclusive

Which of the following is NOT a part of the nervous system?

• Reflex actions

• Stomach

• Electrical impulses

• Neurones

What is the purpose of the conversion table in the ruler drop test?

• To measure the intelligence of the participants

• To determine the strength of the person's grip

• To calculate the weight of the ruler

• To convert ruler measurements into reaction time