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Biology 12 Chapter 15
Homeostasis - 1
1.
The tendency of an organism to regulate its internal conditions is called?
a) Inheritance.
b) Reproduction.
c) Respiration.
d) Homeostasis.
2.
Which of the following are ‘variables’?
a) All of these.
b) Water concentration.
c) Solute composition.
d) Body temperature.
3.
What is the normal value stored previously in memory called?
a) Variable.
b) Set point.
c) Sensor.
d) Integrator.
4.
How many components a homeostatic mechanism have?
a) Four.
b) One.
c) Two.
d) Three.
5.
Which one detects changes in variable?
a) Integrator.
b) Effector.
c) Control centre.
d) Receptor.
6.
Which one integrates set point data from sensor?
a) Control centre.
b) Effector.
c) Receptor.
d) Variable.
7.
Which of the following is a receptor?
a) Thermostat.
b) None.
c) Heating coil.
d) Thermometer.
8.
Which of the following is an integrator?
a) Heating coil.
b) Thermometer.
c) None.
d) Thermostat.
9.
Which of the following is an effector?
a) Thermometer.
b) Heating coil.
c) None.
d) Thermostat.
10.
What is the thermostat of the body?
a) Amygdala.
b) Thalamus.
c) Cerebellum.
d) Hypothalamus.
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