Answer:
weak acid
Explanation:
4-6.9 belongs to weak acids
D because gravitational force cannot pull or push
starts with sunlight and photosynthesis if you are talking about plants
Rather, each myelin sheath insulates the axon over a single long section and, in general, each axon comprises multiple long myelinated sections separated from each other by short myelin sheath-gaps called nodes of Ranvier. ... In the CNS, axons carry electrical signals from one nerve cell body to another.