Answer:
Explanation:
Embryo- An unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus).
Similarities and differences-
comparative embryology consist in the observation and the comparison of the embryonic development in various organisms
Similarities and differences between each modes of developments help scientists understand how the diversity of the animals happened
