Islam calls for the death of any Muslim who turns from Islam, period.
Islam does not know all the prophets in the Bible. Examples: Isaiah, Jeremiah, and Ezekiel to name a few. These are major, writing prophets which Muslims know nothing about.
Holy Qur'an clearly says that:
"We did aforetime send messengers before thee: of them there are some whose story We have related to thee, and some whose story We have not related to thee."{40.78}
Did Bible mentioned all Prophets of Children of Israel? Indeed God sent thousands of Prophets to Israel, where all were mentioned in Bible? Your criticism has no basis and it consist on jealousy and malice.