Which of the following animal has less number of sweat glands?
a) sheep
b) goat
c) human
d) dog
Dogs have less number of sweat glands, so they use……… to increase the cooling effect by evaporation of water.
a) skin
b) tongue
c) eyes
d) ears
Kidneys are the main parts of ………. system.
a) respiratory
b) circulatory
c) urinary
d) all of these
Kidneys filter
……….from the blood and excrete them from the body.
a) hormones
b) nitrogenous wastes
c) solid wastes
d) all of these
In addition to the excretion of nitrogenous wastes, kidneys also help in ……..
a) thermoregulation
b) osmoregulation
c) bioenergetics
d) perspiration
If there is more water in the body, kidneys produce …….and……..urine.
a) less, dilute
b) less, concentrated
c) more, dilute
d) more, concentrated
