Dear Kai,
Let’s suppose I accept that there was knowledge of embryology before Mohammad (SAW).But what do you say about the knowledge of universe, astronomy (never to confuse with astrology). Here is the history of astronomy and the discoveries made before the Prophet (SAW).
Hipparchus (c. 190-120 BC)
The most important Greek astronomer of his time. Hipparchus was born in Nicaea, Bithynia (now Iznik, Turkey). He was extremely accurate in his research, a record of which was preserved in the Almagest, the scientific treatise by the Alexandrian astronomer Ptolemy, who was greatly influenced by Hipparchus. By comparing his own celestial studies with those of earlier astronomers, Hipparchus discovered the precession of the equinoxes. His calculation of the tropical year, the length of the year measured by the sun, was within 6.5 minutes of modern measurements. Hipparchus devised a method of locating geographic positions by means of latitudes and longitudes. He cataloged, charted, and calculated the brightness of perhaps as many as 1000 stars. Hipparchus also compiled a table of trigonometric chords that became the basis for modern trigonometry.
Ptolemy (AD 100?-170?)
An astronomer and mathematician, whose astronomical theories and explanations dominated scientific thought until the 16th century. He is also remembered for his contributions to the fields of mathematics, optics, and geography. Ptolemy's actual name, Claudius Ptolemaeus, reflects all that is really known of him: The name "Claudius" suggests a Roman background, while "Ptolemaeus" hints at a possible Egyptian heritage for him. In fact, ancient sources report that for most of his life he lived and worked in Alexandria, Egypt. At a time when Egypt was ruled by Romans, Alexandria was the center of widespread Greek culture, and we know that Ptolemy wrote his works in Greek.
The Almagest
Ptolemy's earliest and most famous work, originally written in Greek, was translated into Arabic as al-Majisti (Great Work). In Europe, medieval Latin translations reproduced the title as Almagesti, and it has since become known simply as the Almagest. In this work, Ptolemy proposed a geometric theory to account mathematically for the apparent motions and positions of the planets, sun, and moon against a background of unmoving stars. This work did not include any physical descriptions of objects in space.
Source: http://www.geocities.com/sblokl/oldguys.html
Now, what do you say about the theory of expansion of this universe, in the Qur'an, which was revealed fourteen centuries ago at a time when the science of astronomy was still primitive, the expansion of the universe was described in the following terms:
And it is We Who have constructed the heaven with might, and verily, it is We Who are steadily expanding it. (Qur'an, 51:47)
The word "heaven," as stated in the verse above, is used in various places in the Qur'an. It is referring to space and the wider universe. Here again, the word is used with this meaning, stating that the universe "expands." The Arabic word "moosiaaoona" in the term "inna lamoosiaaoona," translated into English as "it is We Who are steadily expanding it", comes from the verb "evsea," meaning "to expand." The prefix "la" emphasises the following name or title and adds a sense of "to a great extent." This expression therefore means "We expand the sky or the universe to a great extent." This is the very conclusion that science has reached today.
Theory of expansion of universe was given in late 1920s.See details at:
http://csep10.phys.utk.edu/astr162/lect ... nsion.html