Q.Expand the abbreviation "CAM", and name one plant family that typically shows this mode of photosynthesis.

Crassulacean Acid Metabolism (CAM), found in succulents adapted to arid habitats (cacti, Opuntia, Bryophyllum, pineapple), separates the same two carboxylation steps as the C4 pathway temporally, within one mesophyll cell, rather than spatially across two cell types. At night, stomata open and PEP carboxylase fixes CO2 onto PEP, forming OAA reduced to malic acid, stored in the cell's large central vacuole (raising leaf acidity by morning). During the day, stomata close to conserve water, while stored malic acid is decarboxylated, …