Regulation

Q. In olden days, which mollusc was used as a currency?

1. Cypraea
2. Turbinella
3. Octopus
4. Pila

Q. The figure below is a diagrammatic representation of the response of organisms to abiotic factors. What does A, B and C represent?

1. A - Regulator, B - Partial regulator, C - Conformer
2. A - Partial regulator, B - Regulator, C - Conformer
3. A - Regulator, B - Conformer, C - Partial regulator
4. A - Conformer, B - Regulator, C - Partial regulator

Q. Which molluscan group is primarily used in pearl production?

1. Pelecypods
2. Monoplacophorans
3. Gastropods
4. Cephalopods