Font size
Worksheets3.1 Homeostasis in living things
Total questions: 14
Worksheet time: 7mins
Homeostasis refers to the maintenance of ______________ in the body of an organism.
internal environment
external environment
Homeostasis include
temperature
water
pH
blood pressure
air
When the body temperature increases, the control centre at the ________ will detect the changes.
brain
nerve
A ______________ will take place and the temperature will reduce to its normal range.
corrective mechanism
respiration system
blood circulation system
nervous system
How do reptiles maintain homeostasis when the surrounding is cold?
Movement become slower
Body activities becomes faster
Metabolism rate increases
Which of the following is NOT a characteristic of all living things?
Move around.
Use energy.
Respond to surrounding environment
Grow, develop, and reproduce
Why is the sensation of thirst important to maintaining homeostasis?
Water removed by the kidneys must be replaced
Oxygen cannot diffuse into cells if a person is dehydrated
Water molecules are needed to carry carbon dioxide waste to the kidneys
Why does pulse rate increase during exercise?
Oxygen and carbon dioxide must be removed from the body ASAP
Gas exchange must happen more quickly than when a person is at rest
Oxygen must be moved to the lungs and carbon dioxide must be moved to cells more quickly
Carbon dioxide must be moved to the kidneys to be excreted
The group of organisms that use the process of homeostasis includes
mammals, only
animals, only
plants and animals
all living things
Which of the following is NOT an example of homeostasis?
A human producing gametes
A plant bending toward sunlight
A bird drinking water when thirsty
A dog stealing chicken off the kitchen counter when hungry
