Biology

1234567
Across
  1. 1. A reaction to something is called a ________.
  2. 3. The process of natural changes.
  3. 5. To arrange in an orderly manner.
  4. 6. This class is about _______.
  5. 7. The reaction by the organism.
Down
  1. 1. The production of offspring.
  2. 2. The regulation of an organism's internal condition.
  3. 4. The formation of new cells and new structures.
  4. 5. Anything that has or once had certain characteristics.
  5. 7. A group of organisms that can breed.