3. Why does the lining of the uterus thicken during the first half of the menstruatele
(1) to provide a place for sperm cells to attach
elte produce a mature es cell
(3) te prepare te nature an embeve
(4) to rid the body of unfertilized es cells

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.