Energy is required for
all the activities of life; in animals from where does this energy come?
a) sunlight
b) electrical sources
c) food
d) water
Which of the following gas is used in aerobic respiration?
a) carbon dioxide
b) oxygen
c) nitrogen dioxide
d) chlorine
Which of the following gas is evolved during aerobic respiration?
a) carbon dioxide
b) oxygen
c) nitrogen dioxide
d) chlorine
In less complex animals, oxygen is absorbed through……
a) gills
b) entire exposed surface of the body
c) lungs
d) both a and c
In higher complex animals, oxygen is absorbed through……
a) gills
b) entire exposed surface of the body
c) lungs
d) both a and c
Properties of Respiratory Surfaces
