4644 Active User's
Contact Us
Free Quizzes
Click here to make your own quiz, then challenge your friends!
View all the quizzes available at www.myquizzes.ca
Business( 76 )
Computers( 360 )
English( 824 )
Fitness( 60 )
Geography( 240 )
History( 653 )
Math( 1998 )
Movies( 366 )
Philosophy( 24 )
Psychology( 37 )
Science( 1509 )
Sports( 437 )
TV( 417 )
To identify the most effective central air-con, you have to do more than uggs on the phrase of shoes seller. it is in business to make money and will present you with the very boots fashion even when a few ugg boots of these merchandise signify a "good" selection which function on uggs minimal sexy lingeries electricity to keep your electrical payments as low, supply dependable performance for their projected lifespan when correctly maintained, function quietly and require minimal servicing cheap shoes. To judge particular air-con techniques by these standards, researching professional and ugg sale buyer opinions is an ugg classic cardy resource. However earlier than fashion clothing you resolve to buy an air-conditioner, you ll need to reply two questions cheap uggs concerning your particular needs and wants.
Search by Difficulty
Grade 1-3
Grade 4-6
Grade 7-9
Grade 10-11
Grade 12
Secondary Education

Find Your Quizzes
Search By Email

Challenge A Friend!
Print out the questions for this quiz. Print the answers to this quiz.

  Maintaining a balance Quiz
Question Number 1
Why do different organisms need to live in a particular temperature range?
A. Fluids within the body are not mobile at high and low temperatures
B. Enzymes for metabolism are operating at optimum activity level
C. Organs cannot function at low temperatures
D. Nervous systems cannot function at extreme temperatures
Question Number 2
Enzymes are?
A. carbohydates
B. proteins
C. steroids
D. lipids
Question Number 3
The active site for enzyme action is?
A. the site where enzymes are made
B. the site where the enzyme enters the substrate
C. part of the outer surface of the substrate
D. part of the enzyme that attaches to the substrate
Question Number 4
the pH of a substance is related to?
A. the number of hydrogen ions in a solution
B. the number of oxygen ions in a solution
C. the number of hydroxide ions in a solution
D. the number of water atoms in a solution
Question Number 5
what factors effect enzyme activity?
A. pH, temperature and oxygen concentration
B. pH, temperature and protein concentration
C. pH, temperature and enzyme concentration
D. pH, temperature and substrate concentration
Question Number 6
Which is true of homeostasis?
A. the internal state responds to the external state
B. the internal state is kept within limits regardless of the environment
C. the external state causes the internal state to change
D. enzymes are kept at a constant temperature
Question Number 7
An example of a response to a change in the external envronment is?
A. shivering
B. crying
C. sweating
D. dandruff
E. A, B and C
F. A and C
Question Number 8
When the body gets hot blood vessels respond by?
A. increasing blood flow to the organs
B. decreasing blood flow to the organs
C. increasing blood flow to the skin
D. decreasing blood flow to the skin
Question Number 9
Endotherms derive most of their body heat from?
A. increasing the bodys metabolic rate
B. the external environment
C. increased blood flow
D. cell metabolism
Question Number 10
An example of an Australian ectotherm is?
A. Platypus
B. Blue tongue lizard
C. Green tree frog
D. Bandicoot
E. B and C
F. B, C and D
Question Number 11
Blood contains which types of cells?
A. Red & White blood cells and Plasma
B. Red & White blood cells and Platelets
C. Red & White blood cells and Lymphocytes
D. Red & White blood cells, Plasma, Platelets and Lymphocytes
E. Red & White blood cells, Plasma and Platelets
Question Number 12
Which of these is carried in the blood?
A. Carbon dioxide, water and oxygen
B. Lipids, nitrogenous waste and salts
C. Oxygen, lipids and salts
D. A and B
E. B and C
Question Number 13
Carbon dioxide is carried in?
A. Haemoglobin molecules
B. Platelets
C. Plasma
D. White blood cells
Question Number 14
A Pulse oximeter is used to measure?
A. Oxygen and carbon dioxide in the blood
B. Oxygen and carbon dioxide in the lungs
C. Oxygen in the blood
D. Oxygen in the lungs
Question Number 15
Veins carry blood to?
A. the body from the heart
B. the heart from the body
C. the body to the organs
D. the arteries
E. the capillaries
Question Number 16
Removing carbon dioxide from the blood is important because?
A. It changes enzyme activity
B. It interrrupts glucose metabolism
C. It makes the blood alkaline
D. It makes the blood acidic
Question Number 17
The source to sink model in plants describes?
A. Sugar transport
B. Water transport
C. Phloem transport
D. Xylem transport

 Mission Statement & Legal Information
Myquizzes.ca is a free quizzes site decidicated to providing our user the ability to challenge anyone to their very own quiz or browse through our huge database to challenge a friend. Copyright © 2004-2017
  Disclaimer Terms of Use