The correct answer for the question is B. Fossil.
Fossils are remnants, traces of animals or plants, from the past ages that have been preserved. Fossils may be classified as cast and mold fossil, insect preserved in amber, petrified wood, compression fossil of a fern and pyritized ammonite.
It sends an impulse back to the cell body of a neuron
Answer:
1. Ask a question
2. Make a hypothesis
3. Conduct experiment
4. Make observations and record them
5. draw conclusions
6. write a conclusion
Explanation:
Answer: The nervous system has two main parts:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Explanation: