Embryonic development begins with _____________, the union of sperm and egg to form a zygote. Human Biology Embryonic development begins with _____________, the union of sperm and egg to form a zygote. Answer: fertilization Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.