The influence of human beings on nature (especially when discussing pollution)
Humans can make a difference but carbon is everywhere. This generation has the largest carbon footprint yet.
Answer: The cell wall
Explanation: The cell wall resists overexpansion as the cell swells with water.
C) matter is changed into various forms but the total quantity remains unchanged.
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.