Invertebrate nervous system

Which of the following is a concentration of the nervous system in the head region of an animal, as opposed to a diffuse net?

• Peripheralization

• Cephalization

• Gangliazation

• Hypocentralization

Which of the following is NOT true about the nervous system of most invertebrates?

• The nerve cord is ventral

• There is a greater diversity across invertebrate species in nervous system organization than in vertebrates

• Their nervous system functions are relatively simple

• They show a greater degree of centralization and cephalization

Select TWO correct nervous system structure of flatworm:

• Have a cerebral ganglia

• Have nerve ring

• Have ventral nerve cord

• Have two longitudinal nerve cords with transverse commisures

• Have four longitudinal nerve cords

Select TWO CORRECT nervous system structure of mollusc:

• Have cerebral ganglion, pedal ganglion and pleural ganglion.

• Have segmented nerve

• Have nerve ring

• Have paired nerve cord

In arthropods, the skeletal muscle membrane consist of :

• nicotinic acetylcholine receptors

• ionotrophic glutamate receptors

• muscarinic acetylcholine receptors

• metabotrophic glutamate receptros