Question

2.1.0-12.b
the brain is formed by a variety of nervous tissues and connective tissues. the tissues are tightly organized and work together to complete a variety of tasks.
how is the brain classified?
○ tissue
○ organ
○ organ system

Explanation:

• Tissue: A group of similar cells working together. But the brain is made of multiple types of tissues (nervous and connective), not just one - type of tissue.
• Organ: An organ is a structure composed of different types of tissues (in this case, nervous and connective tissues) that work together to perform a specific function. The brain has the function of processing information, controlling body activities etc.
• Organ system: An organ system is a group of organs that work together to perform a major function. The brain is not a group of organs, but a single structure made of tissues.

Answer:

organ