Answer:
Option (e).
Explanation:
Nervous system is one of the most important systems of the organism that helps them to respond them towards the environment. The nervous system includes the brain, spinal cord and all the neurons.
Nervous system is present in highly complex organism and increases in complexity in case of higher animals. Lower animals do not have nervous system but still they respond to their environment with the help of chemical and receptor. Hence, all the animals have the ability to respond towards the environment.
Thus, the answer is option (e).
The answer is all of the above
Some researchers believe that dreams have no real purpose while others think that dreaming is essential to mental, physical and emotional well-being of a person. Sigmund Freud's theory of dreams suggests that dreams represent a person's unconscious desires, motivations, and thoughts. some dream experts say that we dream because our brain is trying to interpret outside stimuli, while another says that dreams "clear up" the mind for the next day, and in another theory it says that the dreamer is able to make connections between different emotions and thoughts and emotions in a safe environment.
Answer:
brown I guess what's it??
