Because its members are so different from one another. Protists include microscopic organisms that are not bacterias, not animals, not plants and not fungis
Neurons are the main cell of the nervous system which is responsible for communication of organs and control of many bodily functions. Neurons transmit electrochemical signals which are known as neurotransmitters and neuromodulators that act as messengers for sensory input and motor output.
Also, the nervous system is composed of two main branches which are the central nervous system and the peripheral nervous system. The central nervous system is composed of the brain and spinal cord whereas the peripheral nervous system is composed of the nerves around the body.
Therapeutic cloning is the
process of creating multiple copies of a cell to treat a disease. In this type of cloning, the nucleus of a
cell, such as a skin cell, is inserted into a fertilized egg whose nucleus has
been removed. The nucleated egg begins to divide repeatedly to form a
blastocyst. Stem cells are then extracted from the blastocyst and they are used
to grow cells that are a perfect genetic match for the patient. The cells
created through therapeutic cloning can then be transplanted into the patient
to treat a disease from which the patient suffers.
You didn’t include your chart, but protists move using:
Cilia: tiny hairlike structures.
Flagella: A long tail-like structure that is spun around like a motor.
or Pseudopods: A "false foot" organisms form to move.
