1. Imagined by our cerebral cortex
2. A memory from childhood, when we had more taste receptors
3. Odours
4. Normal components of saliva
Odours
1. Within taste bunds in the mouth
2. Within the taste buds in the trachea
3. Within the nasal cavity
4. All over its body surface
All over its body surface
1. Insects
2. Spiders
3. Birds
4. Crab
Birds
1. Ocelli
2. Camera eyes
3. Compound wyes of insects
4. Simple eyes of insects
Camera eyes
1. Monkeys
2. Crocodiles
3. Bats
4. Pigeon
Bats
1. Cephalopoda
2. Bivalvia
3. Gastropoda
4. Pelecypoda
Cephalopoda
1. 1 and 3 are correct
2. 2 and 4 are correct
3. 1 and 2 are correct
4. 1, 2 and 3 are correct
1 and 2 are correct
1. Iris
2. Pupil
3. Ciliary muscles
4. Suspensory ligament
Ciliary muscles
1. Sacculus
2. Semicircular canal
3. Organ corti
4. Reissner’s membrane
Organ corti
1. Dogs are unusual among mammals, in that they depend more on olfaction than on vision, as their dominant sensory modality
2. Olfactory stimuli are recognized by the interaction between the stimulus and a specific macromolecule on olfactory hairs
3. The greater the number of action potentials generated by an olfactory receptor, the greater the intensity of the perceived smell
4. The perception of different smells result from the activation of different combinations of olfactory receptors
The greater the number of action potentials generated by an olfactory receptor, the greater the intensity of the perceived smell