Structure in the living world is organized into hierarchical levels. which of the following correctly lists these from least inclusive to most inclusive?
a. neuron, nervous system, nerve tissue, human
b. neuron, nerve tissue, brain, nervous system, human
c. neuron, brain, nervous system, nerve tissue, human

b. neuron, nerve tissue, brain, nervous system, human

Explanation:

Neurons are the structural and functional units of nervous tissue. Each neuron has a long axon, a metabolic center (soma) and short dendrites. Neurons and neuroglia are the major cell types that together constitute the nervous tissue.

The brain is an organ made of nervous tissues and is a part of the central nervous system. The central and peripheral nervous systems together make the nervous system of the human body.  

The nervous system along with many other organ systems such as the digestive system, respiratory system, cardiovascular system, etc. together make the human body.  

cytokinin is what stimulates cell division

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