Final answer:
The corrections involve changing plural nouns to their singular form when appropriate, as well as correcting general noun misuse, to match the standard grammatical rules of English.
Step-by-step explanation:
Correcting the errors in noun forms in the provided sentences:
- Intelligence is the ability to use thought and knowledge to understand things and solve problems.
- Hormones help adjust the mixture of sugar, salt, and water in your body.
- Psychology, meaning the study of mind and how it works, comes from a Greek word meaning life or soul.
- Brain cells use up a lot of energy, so they need a constant supply of oxygen.
- Each hemisphere of the brain receives information about the opposite side of the visual field.
- Although millions of brain neurons are active at any one time, they do not use much electric power.
- Light entering the eye forms an image on 130 million tiny light cells.
- Most animals are able to rely on learning and memory.
The nervous system, which includes the brain, is essential for learning as it processes and integrates information from the senses and orchestrates thoughts and memories.