RESPIRATION IN TOAD
Tadpole The young toad called tadpole uses gills for gaseous exchange. At the tadpole stage, the animal develops external gills through which direct diffusion of gases takes place between the animal (tadpole) and the respiratory medium (water). Oxygen dissolved in…
OXIDES
Oxides are binary compounds formed when elements combine with oxygen. Binary compounds are compounds containing two elements only. Oxides are classified into several groups, namely, acidic oxides, basic oxides, amphoteric oxides, neutral oxides and higher oxides. 1) Acidic oxides: These…
Study Guide
