WorksheetsHomeostasis - TASC
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
What is homeostasis?
a)
Another name for white blood cells
b)
Regulation of an organism's internal environment to maintain and balance conditions for life.
c)
Chemicals produced by glands that cause organs to behave in a certain way
2.
Which is an example of an external stimulus?
a)
Hunger
b)
Outdoor temperature
c)
Thirst
d)
Full stomach
3.
Which is an example of an internal stiumuli
a)
Sound
b)
Light
c)
Outdoor temperatute
d)
Hunger
4.
Which of the following is not a condition regulated by homeostasis?
a)
Body Temperature
b)
Breathing Rate
c)
Heart Rate
d)
Height
5.
Which body system is most important for maintaining homeostasis?
a)
Circulator
b)
DIgestive
c)
Nervous
d)
Skeletal
6.
Which of the following is the least essential body system for maintaining homeostasis?
a)
Skeletal
b)
Endocrin
c)
Nervous
7.
What is the first step in the process of maintaining homeostasis?
a)
Internal or external stimulus
b)
Body changes a system's functioning
c)
Body returns to normal functioning
8.
What is the final step in homeostasis
a)
Balance is restored
b)
An internal or external stimulus occurs
c)
The brain sends a message to an organ to change the way it's functioning.
9.
Which of the following is an example of a negative feedback mechanism?
a)
Blood Clotting
b)
Fever
c)
Sweating
d)
Hormones to increase contractions during childbirth
10.
Which of the following is a positive feedback mechanism?
a)
Hormones released in childbirth to increase contraction rate
b)
Shivering
c)
Sweating
11.
Which of the following best illustrates the sequence of what will happen when the body experiences increased blood pressure?
a)
Sensors detect increased pressure--> signal sent to brain--> blood vessels dilate--> pressure decreases
b)
brain detects increased pressure--> signal from brain to sensors--> signal blood vessels dilate--> pressure decreases
c)
sensors sense increased pressure-->signal sent to brain--> signal to circulatory system--> blood vessels dilate--> pressure decreases
d)
brain detects increased pressure--> signal from brain to senseors--> signal from sensors to circulatory system--> pressure decreases
12.
How would humans combat hot weather and achieve homeostasis?
a)
Shiver
b)
Pant
c)
Sweat
d)
Breathe heavily
100 %
