Change over time

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Across
  1. 2. Branch of biology concerned with the study of the structure of organisms and their parts.
  2. 3. Adj., Belonging to the same family, group, or type; connected
  3. 4. Early stage of development of a multicellular organism.
Down
  1. 1. Verb., To change, or develop, over time.
  2. 2. A parent, grandparent, great-grandparent, great-great-grandparent, etc.