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3241004551 [841]
3 years ago
13

Match the following. Drag and drop each organizational level so that it properly matches up with its description/term. Each term

reflects a component of the nervous system.
1. Organ level :
2. Cellular level :
3. Chemical level :
4. Tissue level :
5. Organ system level :


A. Brain
B. Neurons
C. Neurotransmitters
D. Neurons and neuroglial cells
E.Brain combined with the spinal cord and spinal nerves
Biology
1 answer:
Ratling [72]3 years ago
7 0

Answer: A. Brain - Organ level

B. Neurons - Cellular level

C. Neurotransmitters - Chemical level

D. Neurons and neuroglial cells - Tissue level

E.Brain combined with the spinal cord and spinal nerves - Organ System level

Explanation: There are five levels of organisation of life; cell, tissue, organ, system and organism.

The smallest unit is cell. Neurons are nerve cells.

Aggregation of cells forms a tissue. Neurons and neuroglial cells aggregate to form nervous tissues and are hence at tissue level.

Aggregation of tissues forms an organ. Brain is an example of organ. It is formed from aggregation of nervous tissues.

Tissues aggregate to form organs while aggregation of organs constitute a system. The nervous system consist of brain combined with spinal cord and spinal nerves.

The nervous system release chemicals called neurotransmitters.

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