Question

unit 2.3 quiz - due 11/17
3.1.9 12 b
the brain is formed by a variety of nervous tissues and connective tissues. the tissues are highly organized and work together to execute a
variety of tasks.
how is the brain classified?
o tissue
o organ
o organ system
o organism

Explanation:

To determine how the brain is classified, we recall the biological levels of organization. A tissue is a group of similar cells, an organ is a structure made of different tissues working together, an organ system is a group of organs, and an organism is a whole living being. The brain is made of nervous and connective tissues working together for specific functions, so it is an organ.

Answer:

C. organ (assuming the third option is labeled as C; if the options are labeled as the first option "tissue", second "organ", third "organ system", fourth "organism", then the correct one is the second option: organ)