You are a medieval farmer who plants winter wheat. You need to figure out how to best use your fields under the two-field system. Decide which fields to plant and which to leave fallow during each year.
Field 1
Field 2
Year 1
wheat
Year 2
Year 3
Year 4

Which of these describes nerve cells? a. specialized cells that protect the body from harmful bacteria b. specialized cells that maintain structural support c. specialized cells that send messages from one part of the body to another d. specialized cells that the body move freely and maintain flexibility