Read the text attentively again and say which statements are true to the fact or false.

1) Cytology is the study of the formation of life.

2) Embryology looks at the very beginning of life from the multi-celled organism, egg or sperm.

3) Embryologists examine fertilization.

4) So in humans, the study of an embryo would last until about the first month of a pregnancy.

5) Caspar Fredriech Wolff was one of the first to champion the theory of epigenesis.

6) Wolff realized that the body of an organism has stages of development.

7) Aristotle is credited as the "Father of Embryology," even though he did not first conceptualize epigenesis.

8) Today, the theories of embryology are easier to prove because of the accuracy with which we can examine RNA codes within a cell.

9) Embryology has given doctors the tools to create fertilized eggs for in vivo implantation.

Speak on the new facts you found in the text.

What wondered you or what information was new for you? Can you add any other information about the embryology?

Make a plan of this text. Add key words in it if necessary.

Retell this text using your plan and adding the information you found about embryology.

8. Choose the TOPICS you like for the presentations and make it with your partner:

• Ontogeny

• Embryogenesis

• Prenatal development

• Epigenesis

• Developmental biology

• Morphogens