Answer:
The correct answer is B terpentation
Explanation:
Trepanation consisted on drilling a hole on a person's skull to relieve the pressure of blood after an injury and treat intercranial diseases. It is presumed this surgery exists from the Neolithic Age and has been done first by Egyptians, Greeks, Romans and Indians.
Answer:
kháng thể, pentraxin và các tầng bổ sung và tiếp xúc
Answer:
There are 2 basic types of genetic mutations:
Acquired mutations. These are the most common cause of cancer. ...
Germline mutations. These are less common. ...
Tumor suppressor genes. These are protective genes. ...
Oncogenes. These turn a healthy cell into a cancerous cell. ...
DNA repair genes.
Explanation:
Answer:
1 / 10 ; 1 / 5 ; 5 / 12 ; 2 / 5
Explanation:
Experimental probability is defined as the ratio of the total number of times an event occur to the total number of trials.
In the experiment performed, the total number of trials is the number of times a paper was drawn from the lot, which 120 times.
From the experiment, the following observations were recorded :
X ___ number of times drawn
1 ____ 12
2 ____18
3 ____ 13
4 ____ 9
5 ____8
6 ____ 24
7 ____ 9
8 ___ 12
9 ___ 8
10 ___ 7
Experimental probability = number of times an event occur / total number of trials
Experimental probability of :
P(1) = 12 / 120 = 1 / 10
P(6) = 24 /120 = 1 / 5
P(an odd) = p(1) + p(3) + p(5) + p(7) + p(9)
P(odd) = (12 + 13 + 8 + 9 + 8) / 120 = 50 / 120 = 5 / 12
A prime number = P(2) + p(3) + p(5) + p(7)
P(prime number) = (18 + 13 + 8 + 9) / 120 = 48 / 120 = 2 / 5
