Lecture 1: Evolution of the Nervous System and Behavior

Question 1

nerve nets

Answer 1

a network of dispersed epithelial sensory neurons and so-called ganglion cells, which are neurons that send out neuritis, forming an intricate mesh of fibres on the asal side of the epithelium

Question 2

the BLANK is the simplest form of a nervous system found in BLANK usually in radially symmetric organisms

Answer 2

nerve net

multicellular organisms

Question 3

What does the nerve net innervate?

Answer 3

In all cnidarian groups, a well developed nerve net correlates with the presence of basiepithelial muscle fibers directly innervated by nerve net neurons

Question 4

cephalization

Answer 4

describes the movement of neurons and sensory organs into a concentration region within an organism

Question 5

cephalization facilitates the formation of the BLANK

Answer 5

brain

Question 6

the complex nervous systems found in vertebrates and other bilaterians are thought to have emerge from

Answer 6

an ancient nerve net