Answer:
Explanation:
ecosystem are vital for human welfare and survival, they provide us our essential products and benefits.
The choices are:
a. The fetus undergoes the most rapid weight gain during the first trimester.
b. The fetus takes an average of 30 weeks to mature after conception.
c. Fetal organ systems develop at a steady rate throughout pregnancy.
d. To ensure proper growth, a fertilized egg must implant in the wall of the uterus.
Answer:
The answer is letter d, To ensure proper growth, a fertilized egg must implant in the wall of the uterus.
Explanation:
The fetal development process starts with the conception and implantation. <em>Conception</em><u> is the process by which the male's sperm meets with the woman's egg cell in order to be fertilize</u>d. Once the egg is fertilized, it has to be implanted in the woman's uterus. Once it adheres to the wall, the fertilized egg cell (embryo) now becomes known as a<em> "blastocyst."</em> This is a very essential stage for fetal development because this allows the embryo to receive proper nutrients from its mother.
Implantation occurs at least 6 to 9 days after the egg is fertilized. A woman may experience the following symptoms:<em> fatigue, breast tenderness, increased urination, food cravings, morning sickness, mood swings, headaches, etc.</em>
