The primary functional cell found in nervous tissue is the
a) neuron
b) fiber
c) fibroblast
d) squamous

a) neuron

Explanation:

The neuron is the main cell of the nervous system, being responsible for the conduction, reception and transmission of nerve impulses.

The basic structure of a neuron is formed by: Cell or Pericary Body, containing the nucleus, the cytoplasm and the cytoskeleton; Dentritos, thin branched extensions of the cell body, increasing the surface of electrical propagation; Axon, extension of the neuron of varying sizes, serving as the conductor of the electrical impulse; and the Telodendron, terminal branch of the axon, communicating with other neurons or other effector types (muscle and glandular cells).

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

read more on -

explanation:

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.