People are in danger all the time. You will choke when drinking water, you will be hit by a car when crossing the road, etc. Everything has risks. The key lies in how you avoid them!

There are many categories of biology, and the test species and test reagents used are also very complicated. However, there will be very detailed operating procedures to follow during the test learning process, as long as you can strictly follow the test. If you follow the procedures carefully to protect yourself, these potential risks can be completely avoided