Answer:
The addition of an extra chromosome usually occurs spontaneously during conception. The cause of this is unknown and prevention is not possible. The most important risk factor for trisomy conditions is maternal age. Women in their late 30s and 40s have a higher chance of trisomy conditions occurring.
Answer:
the Coriolis effect
Explanation:
the earths rotation causes wind also known as the coriolis effect
Scientific process of experience useful observation
Answer:
Plant cell and Animal cell
Explanation: