How
many environments animals really have?
a) two
b) three
c) four
d) undefined
The internal environment is formed by the circulating organic liquid called…..
a) lymph
b) plasma
c) blood
d) both a and b
Which of the following surrounds and bathes all the tissue in human body?
a) water
b) blood
c) lymph or plasma
d) CSF
The tendency of an organism or cell to regulate internal condition is called…..
a) homeostasis
b) osmoregulation
c) excretion
d) thermoregulation
How many components operate the mechanism of homeostasis?
a) two
b) three
c) four
d) six
Which of the following detects the changes in variable and feeds the information back to the control center?
a) receptor
b) effector
c) control center
d) none of these
