Arrange the following terms in order from least complex to greatest complex

brain
nerve cells
human organisms
nerve tissue
nervous system

brain

nerve cells
nerve tissue
nervous system
human organisms

are you sure

Apologies for the earlier response. Here is the correct ordering:

nerve cells
nerve tissue
nervous system
brain
human organisms

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To arrange the terms from least complex to greatest complex, we need to consider their hierarchical levels of organization. Here's the order:

1. Nerve cells: Nerve cells, also known as neurons, are the basic building blocks of the nervous system. They are responsible for transmitting and processing information through electrical and chemical signals.

2. Nerve tissue: Nerve tissue is a collection of nerve cells grouped together to form specific structures. It can be found in various parts of the body, such as the brain, spinal cord, and peripheral nerves.

3. Nervous system: The nervous system is a complex network of nerves and cells that allows the body to receive and respond to stimuli. It includes the brain, spinal cord, and peripheral nerves. The nervous system coordinates and controls bodily functions and helps maintain homeostasis.

4. Brain: The brain is the command center of the nervous system and one of the most complex organs in the human body. It controls various functions, including cognition, sensory processing, motor control, and hormonal regulation.

5. Human organisms: Human organisms refer to the entirety of a living individual, comprising multiple organ systems (including the nervous system), tissues, and cells working together to sustain life.

Therefore, the correct order from least complex to greatest complex would be:
Nerve cells → Nerve tissue → Nervous system → Brain → Human organisms.