Breathing is a regular rhythmic process which:
a) moves air into and out of the lungs
b) Reduce the surface tension of the lining of the lungs
c) Release energy from glucose within living cells
d) moves gases from an area of high concentration to an area of lower concentration
In higher animals, the organ for breathing is …
a) book lungs
b) gills
c) lungs
d) skin
In higher animals, the organ for breathing is …
a) book lungs
b) gills
c) lungs
d) skin
Gaseous
Exchange in Plants:
Plants carrying out respiration at ………
a) Night
b) day
c) day and night
d) morning
Photosynthesis occurs at………………
a) day time
b) night
b) both a and b
d) at midday after noon
