Question

Fill in the blanks with the correct words.

1. .................... (Inhalation/Exhalation) is the first step in breathing.
2. Fish absorb oxygen from water through .................... (gills/diffusion).
3. The exchange of gases at the cellular level is called .................... (breathing/respiration).
4. Plants respire through .................... (stomata/seed).
5. Respiration in the absence of oxygen is .................... (aerobic/anaerobic).

Answer 1

1. Inhalation is the first step in breathing.
2. Fish absorb oxygen from water through gills.
3. The exchange of gases at the cellular level is called respiration.
4. Plants respire through stomata.
5. Respiration in absence of oxygen is anaerobic.