Names are important. It is difficult for us to conceive of things apart from their names. The many different names for God in the Bible describe and demonstrate His character.
The census of those on the ark included Noah, Shem, Ham, and Japheth, Noah’s wife, and the three wives of his sons (Genesis 7:13). With these four men and four women, the earth was repopulated after the flood.
Many, both in the religious world and otherwise, have a gross misunderstanding of what constitutes faith. Contrary to scripture, many believe that faith is necessary to "fill in the gaps" in the absence of real, tangible evidence.
While the Jews were subject to various food laws, forbidding to eat several types of food (e.g. pork), the Christian is under no such restriction today.
The difference between leavened and unleavened bread is found in the word itself - leaven. Leaven is what is placed in bread dough to make the bread rise. It is placed in the dough and spreads throughout the entire lump.