There are three different alleles A, B, O
<span>These produce four different phenotypes A, B, AB, O
</span>
According to statistics, 78 % victims of pool drowning accidents are less than 5 % years old, and one of an area that caused the most death is an open natural water such as lake or river.
which mean that the potential Reasons are :
- they still has not developed the capabilities to swim on their own
- They still haven't got enough strength to handle the stream in open water
Answer:
- play a sport
- participate in physical education
- eat healthy
- take dog for walk after school
- get a good nights rest
