What is a key feature of nervous tissue?

A key feature of nervous tissue is indeed the presence of neurons and glial cells. Neurons are the fundamental units of the nervous system responsible for transmitting electrical signals throughout the body, allowing for communication between different parts of the nervous system and the body as a whole. Glial cells, also known as neuroglia, play crucial support roles in maintaining homeostasis, forming myelin, and providing support and protection for neurons. This unique cellular composition distinguishes nervous tissue from other tissue types.

The other options highlight features associated with different tissues. Muscle fibers are specific to muscular tissue, which is responsible for movement and force generation in the body. Adipocytes, or fat cells, are primarily found in adipose tissue, which is involved in storage of energy in the form of fat. Connective tissue fibers, such as collagen and elastin, are characteristic of connective tissues that provide structural support and connectivity between different tissues and organs. Therefore, the distinguishing traits of nervous tissue center around its specialized cells, namely neurons and glial cells, that facilitate its unique functions within the body.